Colorado Rocky Mountain Health Plans DME Coverage Update | OpenPayer
ModifiedColorado Rocky Mountain Health PlansPolicy MP.009.35
Durable Medical Equipment, Orthotics, Medical Supplies, and Repairs/Replacements
Policy governing coverage, medical necessity criteria, and documentation requirements for outpatient durable medical equipment (DME), orthotics, and related supplies for UnitedHealthcare Commercial and Individual Exchange plans.
Policy Summary
PayerColorado Rocky Mountain Health Plans
PolicyDurable Medical Equipment, Orthotics, Medical Supplies, and Repairs/Replacements
Policy CodePolicy MP.009.35
Change TypeCoverage and criteria revisions (ventilator and bilevel PAP language clarified)
Effective DateFeb 1, 2026
Next Review DateN/A
Key ActionProvide medical records and device usage reports (adherence downloads) when requested to support medical necessity, replacements, or continued coverage.
Added language to indicate home mechanical ventilators are not medically necessary for individuals with stable COPD with an arterial PaCO2 of less than 52 mm Hg while awake on room air.
Replaced wording about ventilators used to deliver continuous or intermittent positive airway pressure with a clarified statement that home mechanical ventilators used only to deliver continuous or intermittent positive airway pressure (HCPCS codes E0465 and E0466) are not medically necessary.
Revised bilevel PAP language to state it is unproven and not medically necessary for CSA and OSA when adherent use is <4 hours during sleep on at least 21–30 consecutive days, with grammatical/clarity edits.
Added language to indicate this policy does not apply to Durable Medical Equipment or supplies used in an outpatient or inpatient facility.
Added InterQual® Medicare: Post Acute & Durable Medical Equipment as a guideline UnitedHealthcare may use to determine medical necessity.
Added statement that medical records documentation may be required to assess whether the member meets clinical criteria for coverage but does not guarantee coverage.
5 yearsRUL (years)
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<52 mm HgPaCO2 threshold
4 hrs/nightBPAP adherence
InterQualPrimary guideline
E0465/E0466Ventilator HCPCS
Coverage and Medical Necessity Criteria
Medical necessity criteria (general DME and home mechanical ventilators)
DME, related supplies, and orthotics are medically necessary when ALL of the following are met:
General DME medical necessity: Ordered by a physician; the item meets the plan's medically necessary definition in the member specific benefit plan; criteria below are met; the item is not otherwise excluded from coverage.
Per policy and Benefit Considerations; InterQual/CMS guidance may be used to determine medical necessity.
Home mechanical ventilator - exclusion scenarios: Home mechanical ventilators are not medically necessary when any of the following apply: used only in bilevel PAP mode (HCPCS E0470/E0471); used only to deliver continuous or intermittent PAP (HCPCS E0465/E0466); or used for non–life‑threatening conditions where interruption would not quickly lead to serious harm or death.
See InterQual for device‑specific clinical coverage criteria.
Ventilator non-coverage for stable COPD: Home mechanical ventilators are not medically necessary for individuals with stable COPD with an arterial PaCO2 of less than 52 mm Hg while awake on room air.PaCO2 < 52 mm Hg (awake on room air)
Explicit policy noncoverage threshold per revision.
Repair/Replacement/Upgrade and General Criteria
Repair, replacement, and upgrade are covered when the member has a DME benefit and specific conditions are met.
Repairs, including replacement of essential accessories (e.g., hoses, tubes, mouthpieces), are covered when necessary to make the DME item serviceable.
Vendor/manufacturer responsibility applies to rented or under‑warranty equipment.
Replacement is covered when the equipment is beyond its Reasonable Useful Lifetime (RUL) and irreparable.RUL = 5 years (unless otherwise stated)
Requests for exceptions are adjudicated per member specific benefit plan and medical necessity documentation.
Upgrades require physician documentation demonstrating a change in the member's medical condition that necessitates different equipment; upgrade requests are treated as new requests and require the same documentation as an initial request.
Document clinical need and acceptance of member financial responsibility if item exceeds policy specifications.
Equipment-specific coverage statements
Coverage statements for specific equipment types when medical necessity or applicable benefit applies.
Breast pumps may be covered under the preventive care services benefit; refer to the Preventive Care Services policy for indications.
Therapeutic contact lenses/scleral shells: Contact lenses or scleral shells used to treat ocular injury or disease (e.g., corneal abrasion, keratoconus, severe dry eye) may be covered as therapeutic services and are not subject to a plan contact lens exclusion.
Dedicated speech/tracheo‑esophageal devices: Dedicated speech generating devices and tracheo‑esophageal voice devices required for severe speech impairment due to sickness or injury may be covered as DME.
Enteral pumps are covered as DME; refer to the Enteral Nutrition policy for formula coverage details.
Coverage stance and medical necessity signals from the provided excerpts:
Walkers are proven and medically necessary in certain circumstances.
Documented clinical need required.
HMV/BPAP for COPD - unproven condition: HMVs and BPAP are considered unproven for chronic stable COPD when awake arterial PaCO2 is less than 52 mm Hg on room air.PaCO2 < 52 mm Hg
Policy marks devices unproven below this threshold.
BPAP adherence requirement: BPAP (with or without backup rate) is considered unproven for CSA or OSA when adherent use is less than 4 hours during sleep time on at least 21–30 consecutive days.< 4 hours/night over 21–30 consecutive days
Insufficient evidence of safety and efficacy when adherence below threshold.
Extracted coverage considerations
Policy-relevant coverage considerations reflected in cited guidelines and evidence:
Adherence‑based coverage: BPAP/ASV devices may be considered only when adequate adherence to prior PAP therapy is demonstrated; devices are considered unproven if adherent use is <4 hours/night for 21–30 consecutive days.adherence <4 hrs/night for 21–30 days
Adherence download data should be provided to support continued coverage.
COPD chronic hypercapnia criteria: Consider long‑term NIV (BPAP/HMV) for COPD patients with chronic hypercapnic respiratory failure when PaCO2 ≥52 mm Hg, or when sleep apnea is not the predominant cause of hypercapnia, and for persistent hypercapnia ≥2 weeks after hospital discharge; reassess within 6 months with objective PaCO2 and symptom outcomes.PaCO2 ≥ 52 mm Hg
Based on CHEST, ATS, and Canadian guideline summaries.
Initial therapy and optimization for PAP:
Selected Noncoverage / Unproven Criteria
Selected coverage stances and clinical thresholds described in policy revisions
Home mechanical ventilators not medically necessary for stable COPD: Home mechanical ventilators are not medically necessary for individuals with stable COPD with an arterial PaCO2 of less than 52 mm Hg while awake on room air.PaCO2 < 52 mm Hg (awake on room air)
Added in 02/01/2026 revision.
Ventilators used only to deliver CPAP/BiPAP not medically necessary: Home mechanical ventilators used only to deliver continuous or intermittent positive airway pressure (HCPCS codes E0465 and E0466) are not medically necessary.HCPCS E0465/E0466 used solely for CPAP/BiPAP delivery
Revision clarifies earlier wording; specific HCPCS codes referenced.
Bilevel PAP unproven/not medically necessary for CSA/OSA with low adherence: Bilevel PAP (with or without backup rate) is unproven and not medically necessary for CSA or OSA when adherent use is <4 hours during sleep on at least 21–30 consecutive days.
This policy applies to Durable Medical Equipment (DME), orthotics, and related supplies provided for outpatient use in the home. The policy does not apply to DME or supplies used in an outpatient or inpatient facility; coverage and medical necessity for items used in facilities are governed by the member-specific benefit plan and applicable facility policies.
Cranial remolding orthoses (cranial molding helmets, billed with HCPCS code S1040) are excluded except when they meet the specific medical criteria described in the Plagiocephaly and Craniosynostosis Treatment policy. By contrast, protective helmets (HCPCS codes A8000–A8004) are considered safety devices and are not cranial remolding devices; they are not intended for active cranial reshaping and are addressed under coverage limitations and exclusions.
Accessories and items intended primarily for comfort, convenience, or non-medical uses are excluded from coverage. Examples include air conditioners, air purifiers and filters, humidifiers, non-medical batteries, and other comfort items. Non-medical mobility devices (e.g., commercial strollers) are excluded (pediatric wheelchairs are an exception). Home or vehicle remodeling or modification to accommodate DME, replacement for loss/theft/malicious damage, routine maintenance, and items that exceed the policy’s minimum functional specifications (deluxe or additional components) are also excluded.
Bilevel PAP (with or without a backup rate) is considered unproven and not medically necessary for individuals with central sleep apnea (CSA) or obstructive sleep apnea (OSA) when objective evidence shows adherent use is less than 4 hours during sleep on at least 21 to 30 consecutive days.
This Medical Policy governs DME and related supplies provided for outpatient/home use and does not apply to equipment or supplies used in outpatient or inpatient facilities. Coverage determinations for items used in facilities should be made according to the member-specific benefit plan and applicable facility rules.
Home mechanical ventilators are not medically necessary when they are used only in bilevel PAP mode (HCPCS E0470, E0471) or when they are used only to deliver continuous or intermittent PAP (HCPCS E0465, E0466); additionally, ventilators used for non–life-threatening conditions where interruption would not quickly cause serious harm are not considered medically necessary under this policy.
Coverage excludes deluxe or additional components of DME that are not necessary to meet the member’s minimum functional specifications. When multiple devices meet functional needs, benefits are available only for the item that satisfies policy minimums; any upgrade or optional feature beyond that minimum is the member’s financial responsibility.
Upgrades are covered only when the physician documents a change in the member’s medical condition that necessitates the different equipment; upgrades are adjudicated as new requests and require the same documentation as an initial request. Replacement is covered when the existing equipment is beyond its Reasonable Useful Lifetime (RUL) of 5 years and irreparable; replacement or upgrade requests when current equipment remains functional are not covered.
Continued provision of BPAP or ASV requires objective evidence of adequate device usage. Use of BPAP/ASV without demonstrable adherence — specifically less than 4 hours per night during sleep across the required observation period — may be determined not medically necessary because benefit cannot be demonstrated.
For central sleep apnea (CSA) and obstructive sleep apnea (OSA), bilevel PAP is considered not medically necessary when the patient’s documented adherent use is 4 hours per night on at least 21–30 consecutive days. Lack of adherence over this observation window is a basis for determining BPAP/ASV therapy to be unproven and not medically necessary.
Coding and Billing Codes
Referenced HCPCS codes for ventilators and PAPHCPCS
E0470
Bilevel positive airway pressure (PAP) mode (mentioned as not medically necessary when ventilator used only in bilevel PAP mode)
E0471
Bilevel positive airway pressure (PAP) mode (mentioned as not medically necessary when ventilator used only in bilevel PAP mode)
E0465
Home mechanical ventilator used to deliver continuous or intermittent PAP (mentioned as not medically necessary when used only to deliver continuous or intermittent PAP)
E0466
Home mechanical ventilator used to deliver continuous or intermittent PAP (mentioned as not medically necessary when used only to deliver continuous or intermittent PAP)
Ventilator noncoverage PaCO2 thresholdArterial PaCO2 < 52 mm Hg while awake on room air — home mechanical ventilators are not medically necessary for stable COPD
Source guidance noteApplies to individuals with stable COPD; policy language added in 02/01/2026 revision
Related HCPCS mentionRevision clarifies ventilators used only to deliver continuous/intermittent PAP (HCPCS E0465, E0466) are not medically necessary
inv-23: Reasonable Useful Lifetime (RUL) value
Standard RUL valueReasonable Useful Lifetime (RUL) = 5 years (computed from delivery to the member)
Device-Specific Medical Necessity Guidance
Device-specific medical necessity guidance (HMV and airway assist devices; InterQual referenced)
Home mechanical ventilators and airway assist devices follow InterQual criteria and specific clinical thresholds.
InterQual‑guided necessity: When InterQual CP: Durable Medical Equipment or InterQual Medicare Post‑Acute & DME criteria support use, the device may be medically necessary; follow InterQual device‑specific clinical coverage criteria and member benefit rules.
UnitedHealthcare applies InterQual (and CMS DME MAC guidance) in the absence of a more specific policy.
DME medical necessity criteria for repairs/replacements/upgrades
Conditions under which repair, replacement, or upgrade are considered medically necessary.
Repair necessary: Repairs and replacement of essential accessories for necessary DME are covered when required to make the device serviceable.
Includes hoses, tubes, mouthpieces; vendor/manufacturer responsibilities apply for rented/warrantied equipment.
Provider Requirements, Prior Authorization, and Operational Steps
Billing Rule
Coverage limited to the item that meets minimal functional specifications
When more than one piece of DME can meet the member's functional needs, benefits are available only for the item that meets the minimum specifications for the member's needs. Coverage is therefore limited to the item that meets the minimal functional specifications necessary to treat the member's injury or sickness; deluxe, comfort, or convenience components that exceed minimal specifications are not covered. If a member rents or purchases DME that exceeds the item the plan determines is most cost‑effective, the member is responsible for the cost difference.
Examples: standard electric wheelchair vs. custom wheelchair; standard bed vs. semi‑electric or fully electric bed
Member financial responsibility applies when selecting equipment above the plan‑determined, most cost‑effective option
Note
Archived policy versions (informational)
Rental, Purchase, and Vendor Responsibility Rules
Rule
Summary / Notes
Capped rental
Reasonable Useful Lifetime (RUL) is 5 years and informs capped rental/purchase decisions; RUL computed from delivery to member (standard for DME).
Rule
Summary / Notes
Vendor responsibility for rented/under-warranty items
Vendors/manufacturers are responsible for repairs, replacements, and maintenance for rented equipment and for purchased equipment covered by warranty. Replacement requests follow RUL guidance.
Rule
Summary / Notes
Purchase replacement timing (most DME)
Replacement covered when equipment is beyond its Reasonable Useful Lifetime (RUL = 5 years) and irreparable; exceptions adjudicated per member plan and medical necessity.
Rule
Summary / Notes
Member cost difference when exceeding policy specifications
If a member rents or purchases DME that exceeds the policy-defined minimum specifications, the member is responsible for any cost difference between the chosen item and the item UnitedHealthcare determines to be the most cost-effective.
Rule
Summary / Notes
BPAP / HMV — continued use guidance
Continued use of BPAP or home mechanical ventilator requires documented device usage of at least 4 hours/day on at least 70% of days each month; specific rental vs purchase rules are not specified in this excerpt.
Rule
Summary / Notes
Home mechanical ventilators — review required
Home mechanical ventilators have clarified medical necessity criteria and may require review against InterQual and member-specific benefit plan rules; rental vs purchase rules not specified in the provided excerpt.
Replacement and Reasonable Useful Lifetime (RUL)
inv-79: Durable Medical Equipment replacement interval — every 5 years
Replacement interval (general DME)Durable Medical Equipment replacement interval: every 5 years (Reasonable Useful Lifetime)
Computation ruleRUL computed from delivery date to the member; applies unless policy/member plan states otherwise
Exceptions handlingRequests for exceptions to the 5‑year RUL are reviewed case-by-case per member benefit and medical necessity documentation
inv-80: DME (general) replacement interval — every 5 years
DME (general) replacement intervalEvery 5 years (default Reasonable Useful Lifetime)
Supply itemsRUL does not apply to supply items necessary for effective use of the DME
Documentation Requirements and Evidence Submission
Documentation Required
Provide medical records supporting clinical need when requested for review.
Provide medical records supporting the clinical need when requested for review; documentation will be used to determine whether the member meets clinical criteria.
Medical records submission does not guarantee coverage; decisions are based on member-specific benefit plan and applicable guidelines.
Documentation Required
Provide device-specific clinical documentation for replacements, upgrades, and supply needs.
Supply device-specific clinical documentation when requesting replacements, upgrades, or additional supplies (for example, specify catheter type and quantity).
For supplies (e.g., urinary catheters) include number and type needed.
For upgrades provide same documentation as a new request.
Exclusions and Not Medically Necessary Items
Bilevel PAP (with or without backup rate) is considered not medically necessary for CSA and OSA when objective adherence is below the policy threshold (4 hours/night over the specified observation period). The policy also identifies bilevel PAP as unproven for COPD patients with awake arterial PaCO2 < 52 mm Hg.
The policy excludes fully implanted devices from DME coverage. Protective helmets billed with HCPCS A8000–A8004 are not considered cranial remolding orthoses. Deluxe or non-minimal components of DME that exceed policy minimum specifications are excluded from coverage.
Excluded items include accessories primarily for comfort or convenience (e.g., air conditioners, humidifiers, air purifiers), non-medical mobility devices (except pediatric wheelchairs), home or vehicle remodeling/modification to accommodate DME, routine maintenance, replacement for loss/theft/malicious damage, and supplies explicitly excluded by the member’s benefit plan.
Provision of BPAP or ASV without objective evidence of adequate adherence may be deemed not medically necessary. The policy defines the adherence threshold used to evaluate devices as at least 4 hours/night on an appropriate observation schedule (commonly evaluated as 21–30 consecutive days or as ≥4 hours/night on 70% of nights over a consecutive 30-day period).
Requests for home mechanical ventilators that are used only to deliver CPAP/BiPAP (HCPCS E0465, E0466) may be considered not medically necessary and denied. The policy further states home ventilators are not medically necessary for stable COPD when awake arterial PaCO2 is 52 mm Hg on room air.
Background and Context
Durable Medical Equipment (DME) is physician-ordered equipment intended for outpatient/home use to treat illness or injury and is not generally useful to a person without disease or disability. Home mechanical ventilators and noninvasive airway assist devices have specific clinical indications and are evaluated against device-specific criteria (for example, InterQual) when determining medical necessity.
Definitions and Key Terms
inv-57: DME definition and overview
DME definitionDurable Medical Equipment (DME): medical equipment ordered/provided by a physician for outpatient use, primarily in a home setting; used for medical purposes and not useful in the absence of disease or disability
Key DME characteristicsNot consumable except as needed for effective use; serves a medical purpose for treatment of sickness or injury
Place of usePrimarily used within the home; policy does not apply to DME/supplies used in outpatient or inpatient facilities
Reasonable Useful Lifetime (RUL) definitionStandard useful time for DME set at five (5) years; computation based on delivery to the member
Impact on replacement
Coding Notes and Prior Authorization Highlights
Note
Note
Note
inv-21: Ventilator HCPCS referenced (explicit codes called out in revisions)
Ventilator HCPCS referencedHCPCS codes referenced for ventilators and bilevel PAP: E0465, E0466, E0470, E0471 (policy notes noncoverage when used solely for PAP delivery)
Revision detail02/01/2026 revision explicitly replaced wording to state ventilators used only to deliver continuous/intermittent PAP (E0465, E0466) are not medically necessary
InterQual linkagePolicy adds InterQual HMV device criteria references for medical necessity review
Policy Changes and Revision History
2026-02-01policy_revisionLatest
Added exclusion that policy does not apply to DME or supplies used in an outpatient or inpatient facility; added statement that home mechanical ventilators are not medically necessary for individuals with stable COPD with arterial PaCO2 < 52 mm Hg while awake on room air; clarified ventilator wording and bilevel PAP adherence language.
2026-02-01coding_update
Replaced prior wording to explicitly state home mechanical ventilators used only to deliver continuous or intermittent positive airway pressure are not medically necessary and referenced HCPCS codes E0465 and E0466.
Policy Summary
PayerColorado Rocky Mountain Health Plans
PolicyDurable Medical Equipment, Orthotics, Medical Supplies, and Repairs/Replacements
Policy CodePolicy MP.009.35
Change TypeCoverage and criteria revisions (ventilator and bilevel PAP language clarified)
Effective DateFeb 1, 2026
Next Review DateN/A
Key ActionProvide medical records and device usage reports (adherence downloads) when requested to support medical necessity, replacements, or continued coverage.
Routine wear rendering equipment nonfunctional with ongoing need supports repair/replacement; pediatric DME must allow specified growth adjustments (minimum +2 in seat width, +3 in seat depth).
pediatric growth: +2 in width, +3 in depth
Vendors/manufacturers are responsible for repairs/replacements for rented or warrantied items; coverage includes authorized dispensing settings.
Insulin pumps (disposable and durable) are covered; see the Continuous Glucose Monitoring and Insulin Delivery policy for managing diabetes.
Post‑mastectomy lymphedema stockings (arm): Post‑mastectomy lymphedema stockings for the arm are covered on an unlimited basis consistent with WHCRA requirements.
Medical supplies with DME: Medical supplies necessary for effective use of covered DME (e.g., oxygen tubing, batteries, ostomy and urologic supplies listed) are covered when documented as necessary.
Documentation should include number and type of supplies when applicable.
Orthotic braces that stabilize an injured body part or treat spinal curvature (e.g., AFO, KO, LSO, TLSO) are considered DME when medically necessary.
Refer to coverage limitations and HCPCS definitions.
Walkers are considered proven and medically necessary in certain clinical circumstances when they meet the member's functional needs.
Document clinical need.
For OSA, begin with CPAP/APAP plus education, mask optimization, heated humidification, and behavioral support; prefer CPAP/APAP over BPAP for routine OSA unless specific indications for bilevel or ASV exist.
Guideline‑based therapy escalation and optimization.
<4 hours/night on 21–30 consecutive days
Language revised for clarity in policy update.
RUL applicationRUL applies to most DME items unless otherwise stated in the policy or member specific benefit plan
Exceptions/processRequests for exceptions to the 5-year RUL are adjudicated case-by-case based on member benefit and medical necessity documentation
inv-24: PaCO2 threshold for HMVs/BPAP (unproven)
PaCO2 threshold (HMV/BPAP unproven)Arterial PaCO2 < 52 mm Hg while awake on room air — HMVs/BPAP considered unproven for chronic stable COPD at this threshold
Asleep PaCO2 caveatPolicy clarifies unproven status remains even when asleep PaCO2 ≥ 55 mm Hg for ≥10 minutes or asleep PaCO2 increase >10 mm Hg from baseline with >50 mm Hg for ≥10 minutes
Evidence basisDesignation based on insufficient evidence of safety and efficacy for COPD below this PaCO2 threshold
inv-25: BPAP adherence threshold (noted as unproven when below)
BPAP adherence threshold (unproven when below)Use < 4 hours during sleep for at least 21–30 consecutive days — BPAP (with or without backup rate) considered unproven/not medically necessary for CSA or OSA when below this threshold
Policy revision noteLanguage reworded for clarity in 02/01/2026 revision
Application contextAdherence threshold used as a trigger for determinations of not medically necessary when objective usage data unavailable or below threshold
inv-26: Adherence definition (study-based: ≥4 hrs/night on 70% nights over 30 days)
Study-based adherence definitionAdherence = ≥4 hours/night on 70% of nights during a consecutive 30-day period (definition used in Pépin et al., 2018)
Policy operational definitionPolicy also references ≥4 hours/night for 21–30 consecutive days as an adherence evaluation period
Usage data requirementObjective device download data (hours/night and percent nights) are used to assess adherence for continued coverage
inv-27: Arterial PaCO2 (revised text) — < 52 mm Hg while awake on room air
Revised arterial PaCO2 statementHome mechanical ventilators are not medically necessary for individuals with stable COPD with an arterial PaCO2 of less than 52 mm Hg while awake on room air
Revision dateStatement added/clarified in 02/01/2026 policy revision
Related guidanceApplies in context of InterQual and cited COPD/NIV guideline summaries
inv-28: Bilevel PAP adherence — <4 hours during sleep on 21–30 consecutive days
Bilevel PAP adherence failure definition< 4 hours during sleep on at least 21 to 30 consecutive 24‑hour periods — considered insufficient adherence for medical necessity in CSA/OSA
Policy characterizationBilevel PAP (with or without backup rate) is unproven/not medically necessary when adherence below this period
Assessment methodObjective adherence downloads over the consecutive observation period are required to document usage
Replacement when beyond RUL: Replacement is medically necessary when equipment is beyond its Reasonable Useful Lifetime (5 years) and is irreparable.RUL = 5 years
Exceptions adjudicated per member specific benefit plan and medical necessity documentation.
Upgrade for changed condition: Upgrades are medically necessary when physician documents a change in medical condition requiring different equipment; treated as a new request with required documentation.
Provider must document minimum functional need and member acceptance of any cost difference.
Pediatric growth accommodation: Pediatric DME must allow room for growth adjustments (minimum +2 inches seat width, +3 inches seat depth) to be considered appropriate for coverage.+2 in width, +3 in depth
Walker medical necessity
Walker coverage guidance:
Walker necessity: A walker is medically necessary when it is required to meet the member's documented functional mobility needs and lesser equipment would be insufficient.
When multiple DME options exist, coverage is limited to the item meeting minimum functional specifications; document clinical need.
HMV/BPAP medical necessity considerations for COPD
HMV/BPAP considerations for COPD and long‑term NIV:
Evidence‑supported subgroup: Randomized trials and meta‑analyses indicate benefit of long‑term NIPPV/BPAP in hypercapnic COPD, particularly in subgroups with higher baseline PaCO2 (e.g., ≥55 mm Hg) and when reductions in PaCO2 are achieved.PaCO2 ≥ 55 mm Hg in some studies
Wu et al. and Köhnlein et al. showed mortality and admission benefits in hypercapnic subgroups.
Policy unproven threshold: HMVs/BPAP are considered unproven when awake arterial PaCO2 is <52 mm Hg on room air.PaCO2 < 52 mm Hg
Policy marks devices unproven below this threshold even if asleep PaCO2 elevations are present.
CHEST indications and monitoring: Per CHEST fact sheet, eligible COPD patients include those with PaCO2 ≥52 mm Hg or when sleep apnea is not the predominant cause of hypercapnia; HMV indicated for patients requiring FiO2 ≥36% or 4 L nasal, ventilatory support >8 hours/day, or device alarms/internal battery; continued use requires ≥4 hours/day on ≥70% of days each month.PaCO2 ≥ 52 mm Hg; continued use ≥4 hrs/day on ≥70% of days
Documentation of PaCO2 and adherence/download data expected for ongoing coverage.
Selected guideline-based DME medical necessity triggers
Selected guideline‑based DME medical necessity triggers referenced in this section:
NIV for chronic hypercapnic COPD: Consider long‑term NIV when the patient has chronic hypercapnic respiratory failure with PaCO2 ≥52 mm Hg (persistent), or persistent hypercapnia ≥2 weeks after hospitalization; reassess within 6 months and document PaCO2 normalization, stabilization, ≥20% reduction from baseline, or symptomatic improvement.PaCO2 ≥ 52 mm Hg
Derived from CHEST, ATS, and Canadian Thoracic Society guidance.
HMV specific indications: An HMV is indicated when the patient requires O2 therapy FiO2 ≥36% or 4 L nasally, requires ventilatory support for >8 hours/day, or requires HMV alarms/internal battery features.FiO2 ≥36% or 4 L nasal; ventilatory support >8 hrs/day
CHEST fact sheet criteria.
Ventilator-related medical necessity rules (revision summary items)
Selected medical necessity and noncoverage rules from the policy revision summary applicable to ventilatory support devices:
Stable COPD ventilator threshold: Home mechanical ventilators are not medically necessary for individuals with stable COPD if arterial PaCO2 is <52 mm Hg while awake on room air.PaCO2 < 52 mm Hg
Added in the 02/01/2026 policy update.
Ventilator used solely for PAP delivery: Home mechanical ventilators used only to deliver continuous or intermittent positive airway pressure (HCPCS E0465 and E0466) are not medically necessary.HCPCS E0465/E0466 used solely for PAP delivery
Revision explicitly references HCPCS codes.
Bilevel PAP adherence rule: Bilevel PAP (with or without backup rate) is considered unproven and not medically necessary for CSA or OSA when adherence is <4 hours during sleep on at least 21–30 consecutive days.<4 hours/night on 21–30 consecutive days
Policy language revised for clarity.
This section is archival and lists prior policy versions; no denial triggers are specified here. Archived policy versions are provided for reference only.
Archived versions include various historical policy numbers and titles (Individual Exchange Plans, Oxford Plans, Rocky Mountain Health Plans, etc.)
Presence of archived versions does not imply current coverage or operational rules
Documentation Required
Documentation required for upgrades and member cost responsibility
Requests for upgrades to DME require physician documentation showing a change in the member's medical condition or functional need (e.g., impaired function necessitating a power wheelchair instead of a manual one). Upgrade requests are treated as new service requests and require the same documentation as an initial request. When an upgrade would exceed policy specifications, documentation must establish the minimum functional need and clarify the member's financial responsibility for any portion that exceeds policy‑covered specifications.
Upgrade requests require documentation of changed medical condition and same documentation as a new request
Member cost responsibility must be documented when the requested equipment exceeds policy specifications
Note
Medical records and review (operational note)
Medical records documentation may be required to determine whether the member meets clinical criteria for coverage; however, providing records does not guarantee coverage. The plan follows InterQual® guidelines and applicable medical necessity plans when assessing requests.
Medical records used for review do not guarantee coverage
InterQual® CP: Durable Medical Equipment and related guidelines are used to determine medical necessity in the absence of a specific coverage indication
Prior Authorization
Repair, replacement, and reasonable useful lifetime
Repair, replacement, and upgrade are covered only when the member has a DME benefit and criteria in the Repair, Replacement, and Upgrade section are met. Replacement is for the same or similar equipment that is beyond its Reasonable Useful Lifetime (RUL) and irreparable; unless otherwise stated, RUL is 5 years. Exceptions and requests for earlier replacement are adjudicated per the member specific benefit plan and clinical necessity.
RUL generally = 5 years (does not apply to supply items)
Exceptions based on member benefit document and medical necessity are considered case‑by‑case
Adjudication noteReplacement requests judged against member specific benefit plan and medical necessity documentation
inv-81: BPAP / ASV / humidifiers replacement notes (placeholder)
BPAP / ASV / humidifiers replacement notesReplacement interval not specifically stated in this excerpt; objective adherence and device-specific documentation are required for coverage decisions
Adherence documentationDevice usage reports (hours/night and percent nights) support continued coverage and may inform replacement/upgrades
ExceptionsRequests for replacements outside standard RUL considered per member plan and medical necessity
Ventilator-specific replacement notesPolicy revision clarifies medical necessity and noncoverage scenarios for home mechanical ventilators (including HCPCS E0465/E0466); specific replacement interval for HMVs not detailed in excerpt
Review requirementHMV requests may require review against InterQual criteria and member specific benefit prior authorization rules
Exception adjudicationReplacement or upgrade for ventilators beyond RUL assessed case-by-case with supporting medical documentation
Documentation Required
Clinical justification and acknowledgement of financial responsibility for upgrades
When requesting upgrades that exceed standard policy specifications, include clinical justification and document that the member accepts financial responsibility for any additional cost.
Document why lesser/standard equipment is insufficient.
Obtain member acknowledgement of cost difference.
Documentation Required
Arterial PaCO2 values and clinical justification for NIV initiation/continuation.
When PaCO2 documentation is required for NIV initiation or continuation in COPD, provide arterial blood gas values and clinical justification per guideline criteria.
CHEST criteria reference PaCO2 ≥ 52 mm Hg as an eligibility threshold.
Include evidence that sleep apnea is not the predominant cause of hypercapnia when applicable.
Documentation Required
Device usage reports for the relevant observation period (e.g., 30 days).
Provide objective device usage reports (adherence download data) for the relevant observation period (for example, 30 days) to support continued coverage evaluations.
Adherence definitions referenced include ≥ 4 hours/night on 70% of nights during a consecutive 30-day period.
Usage reports should show hours/night and percent nights used.
Documentation Required
Provide medical records upon request for clinical review.
Provide medical records upon request for clinical review; submission may be required to determine if criteria for coverage are met.
Medical records do not guarantee coverage; determinations follow member plan and guidelines.
Note
Archived documentation section — none stated.
This archived documentation section does not state specific documentation requirements in the excerpt.
Archive entries list prior policy versions without provider documentation instructions.
Replacement covered when equipment is beyond RUL and irreparable; RUL does not apply to supply items
Exception processRequests for exceptions to RUL are reviewed per member plan and medical necessity documentation
inv-59: Customized definition
Customized definitionItems uniquely constructed or substantially modified for a specific member per physician orders; custom-fitted or assembled items are not considered 'Customized' per CMS guidance
Custom-fit distinctionItems measured, assembled, or adapted for a patient (custom-fitted) do not meet the definition of Customized if not uniquely constructed
CMS referenceDefinition and distinctions based on CMS 2013 guidance cited in policy
inv-60: Implanted Devices — not covered as DME
Implanted devices exclusionAny device, appliance, pump, machine, stimulator, or monitor that is fully implanted into the body is not covered as DME
External componentsExternal components of implanted systems (e.g., cochlear external parts) may be considered under the DME benefit; implantable components are part of surgical benefit
Member plan caveatRefer to the member specific benefit plan to determine coverage for repair/replacement of external components
inv-61: Hypopnea definition for PAP evaluation (AASM 2023 reference)
Hypopnea definition (PAP evaluation)An abnormal respiratory event lasting ≥10 seconds with ≥30% reduction in airflow and ≥3% oxygen desaturation from baseline or associated with an arousal (AASM Scoring Manual, 2023)
Use contextDefinition applied for evaluation of PAP therapy and scoring events
ReferenceAASM Scoring Manual, 2023 cited in policy
Hypercapnic COPD PaCO2 threshold (policy treatment)Policy treats HMVs/BPAP as unproven/not medically necessary for chronic stable COPD when awake arterial PaCO2 < 52 mm Hg on room air
Guideline-aligned thresholdCHEST, ATS, Canadian and Swiss guideline summaries reference PaCO2 ≥52 mm Hg for considering long-term NIV; policy marks below 52 mm Hg as unproven
Documentation requirementDocumentation supporting hypercapnia (arterial PaCO2) and that sleep apnea is not predominant may be required for NIV coverage
inv-63: Adherent use for BPAP — definition used in policy
Adherent use for BPAP (policy definition)Policy considers adherent use as at least 4 hours/day on at least 70% of days each month for continued coverage (per CHEST); BPAP unproven if use <4 hours/night for 21–30 consecutive days
Usage monitoringContinued coverage requires objective device usage reports over the relevant observation period
Overlap with study definitionCHEST usage requirement aligns with study-based definitions used in cited literature (≥4 hours/night on 70% of nights)
inv-64: Adherence study definition (≥4 hrs/night on 70% nights over 30 days)
Adherence study definition (Pépin et al.)Adherence defined as ≥4 hours/night on 70% of nights during a consecutive 30‑day period (used in Pépin et al., 2018)
Study cohortPépin et al. included 198,890 individuals across device groups
OperationalizationAverage daily usage calculated over 30-, 60-, or 90-day periods as total hours used divided by days in period
Chronic hypercapnic respiratory failure (COPD) definitionPersisting arterial PaCO2 elevation commonly cited as PaCO2 ≥ 52 mm Hg, used in guideline recommendations for considering long‑term NIV
Guideline sourcesCHEST, Canadian Thoracic Society, and ATS guideline summaries reference PaCO2 ≥52 mm Hg as a threshold
Clinical implicationPatients meeting this threshold may be considered for long‑term NIV to improve survival or reduce readmissions per guideline suggestions
inv-66: WHCRA of 1998 reference in Definitions
WHCRA referenceWomen's Health and Cancer Rights Act (WHCRA) of 1998, § 713(a) referenced in Definitions section for post-mastectomy reconstruction and related coverage
Coverage elementsWHCRA requires coverage for reconstruction stages, contralateral surgery for symmetry, prostheses and treatment of physical complications including lymphedema
Policy noteWHCRA applicability depends on whether the plan covers mastectomies; refer to member specific benefit plan
2026-02-01
clinical_threshold_change
Revised bilevel PAP language to state bilevel PAP (with or without backup rate) is considered unproven and not medically necessary for CSA and OSA when adherent use is <4 hours/night over at least 21–30 consecutive days (clarity/grammar edits).