CurrentColorado Rocky Mountain Health PlansPolicy N/A

Rebundling (Unbundling) of CPT/HCPCS codes

Governs when multiple CPT/HCPCS procedure codes billed by the same individual on the same date of service are eligible for separate reimbursement for UnitedHealthcare Community Plan Medicaid products.

Policy Summary

PayerColorado Rocky Mountain Health Plans

PolicyRebundling (Unbundling) of CPT/HCPCS codes

Policy CodePolicy N/A

Change TypeNo material change

Effective DateN/A

Next Review DateN/A

Key ActionSubmit accurate claims using codes that comprehensively describe services and apply appropriate modifiers to seek separate reimbursement when supported by coding guidance.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

1500/UB04forms to which policy applies

Quarterlyfrequency edits updated

≥30modifiers recognized

Medicaidproduct

State exceptions presentstate-specific rules

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Rebundling / Separate Reimbursement Criteria

Rebundling coverage criteria

Rebundling edits determine eligibility for separate reimbursement; modifiers may permit separate payment only when used per correct coding guidance and authoritative sources.

Services billed together by the same individual (same Federal Tax Identification number) for the same member on the same date of service are reviewed for being Incidental, Mutually Exclusive, Transferred, or Unbundled; such services will not be reimbursed separately unless an appropriate modifier is reported and supported by coding guidance.

Rebundling edit sources include CPT (AMA), CMS National Correct Coding Initiative (CCI) edits, CMS policy, and relevant specialty society guidance; Definitive sources (explicit instructions) take precedence over interpretive sources.

Modifier use: Modifiers listed by the policy (e.g., 25,50,57,58,59,78,79,91,XE,XP,XS,XU,E1–E4,LC–LD,LM,LT,RC–RI,RT,TA,T1–T9,FA–F9) are recognized but will permit separate reimbursement only when applied according to correct coding guidelines and authoritative source instructions.

Modifier limitations (example): Modifiers do not universally bypass bundling edits; reporting two codes that CPT parenthetical explicitly prohibits (e.g., 29866 with 29885–29887 in the same compartment) is inappropriate even with modifiers. Separate-payment modifiers such as 59, XE, XS may be appropriate only when the circumstance matches their specific definitions (distinct anatomic site, separate session, etc.). Informational modifiers (e.g., LT) do not override bundling.

Specific non‑covered services: Certain codes are not separately reimbursable when included in related services per CMS or coding guidance (examples: HCPCS J1642 — heparin flush — included in practice expense and not separately reimbursed; vision screening 99173 generally included with E/M unless guidance allows separate reimbursement; visit complexity codes such as G2211/G0545 are not reimbursed separately with E/M when billed the same date by the same provider).

State exceptions: State‑specific deviations may allow or prohibit separate reimbursement in ways that differ from this policy; providers must consult state exceptions/attachments for allowed deviations (examples referenced in policy: Indiana, Kansas, Tennessee lists).

Recognized Modifiers, Example Codes, and Same-Individual Rules

Recognized ModifiersModifier

25	Significant, separately identifiable evaluation and management service by the same physician on the same day
50	Bilateral procedure
57	Decision for surgery
58	Staged or related procedure or service by the same physician during the postoperative period
59	Distinct procedural service (use per CPT/CMS guidelines); consider XE/XP/XS/XU when appropriate
78	Unplanned return to the operating/procedure room for a related procedure during the postoperative period
79	Unrelated procedure or service by the same physician during the postoperative period
91	Repeat clinical diagnostic laboratory test
XE	Separate Encounter — service performed during a separate encounter
XP	Separate Practitioner — service performed by a different practitioner

1–10 of 43

1/5

Example Codes and Stancesmixed

G2211	Visit complexity — not separately reimbursed when billed with an E/M service by the same physician or Other QHP
G0545	Visit complexity — not separately reimbursed when billed with an E/M service by the same physician or Other QHP
99173	Vision screening test — not separately reimbursed with an E/M service; reimbursable with Preventive Service codes

Same Individual — definition/requirement about same Federal Tax Identification number and same individual rendering services

Same IndividualFor the purposes of this policy, 'Same Individual' means the same individual rendering health care services reporting the same Federal Tax Identification number.

Claims Submission and Modifier Use

Billing Rule

Claim submission and modifier use

Submit accurate claims using codes that comprehensively describe the services provided and report an appropriate modifier only when it correctly reflects the coding circumstance; UnitedHealthcare Community Plan will not reimburse services determined to be Incidental, Mutually Exclusive, Transferred, or Unbundled to a more comprehensive service unless the codes are reported with an appropriate modifier. Informational modifiers (for example LT) do not override rebundling edits; modifiers only permit separate reimbursement when used per applicable coding guidance and authoritative sources (CPT, CMS CCI, CMS policy, specialty society guidance).

Ensure claims are submitted on the correct form (CMS 1500 or UB04 when specified) and include codes that accurately describe the services.
Use only recognized modifiers when they precisely reflect the circumstance that would allow separate payment; modifiers do not universally bypass bundling edits.
Reference CPT, CMS NCCI edits, CMS policy, and specialty society guidance to support modifier use when seeking separate reimbursement.

Policy Definitions

inv-06: Unbundling — definition/explanation of unbundling

DefinitionUnbundling occurs when multiple procedure codes are submitted for a group of procedures that are described by a single comprehensive code (fragmenting one service into component parts and coding each component separately).

PurposeIdentifies when reported codes should be combined into the most comprehensive/appropriate procedure code (rebundling).

Relationship to rebundlingUnbundling is a condition that may trigger rebundling edits to prevent separate reimbursement for component codes when a comprehensive code exists.

inv-07: Incidental Services — definition stating procedures not separately reimbursable when incidental

DefinitionIncidental Services are procedures performed with a primary procedure that are not essential to complete it, do not typically have a significant impact on the work and time of the primary procedure, and are not separately reimbursable when performed with the primary procedure.

Reimbursement ruleIncidental procedures performed with a primary procedure will not be reimbursed separately unless reported with an appropriate modifier and supported by coding guidance.

AssessmentDetermination of 'incidental' status follows definitive and interpretive sources (CPT, CMS, specialty societies) as used by UnitedHealthcare Community Plan.

inv-08: Mutually Exclusive Services — definition about services that cannot reasonably be performed together

DefinitionMutually Exclusive Services are services where the coding combination is considered submitted in error and only one of the services is allowed — for example when services cannot reasonably be done in the same session or represent two methods of performing the same service.

Reimbursement ruleWhen Mutually Exclusive procedures are submitted together, only one service is allowed; such combinations will not be reimbursed separately unless appropriate modifier guidance and authoritative sources indicate otherwise.

Determination criteriaCriteria include inability to perform both services in same session or that the codes represent different methods of the same service; edits are derived from CPT directives and related sources.

inv-09: Rebundling — definition explaining combining coding relationships into most comprehensive code

DefinitionRebundling is identifying and combining specific coding relationships into the most comprehensive and/or appropriate procedure code.

When appliedRebundling may occur when services are considered Incidental, Mutually Exclusive, Transferred, or Unbundled.

ObjectiveEnsure reimbursement matches codes that most comprehensively describe the services performed, using source methodologies (CPT, CMS CCI edits, CMS policy, specialty societies).

inv-10: Same Individual Physician — definition of same individual rendering services and reporting same Federal tax ID

DefinitionSame Individual Physician or Other Qualified Health Care Professional — the same individual rendering health care services reporting the same Federal Tax Identification number.

Implication for claimsServices reported by the same individual (same Federal Tax ID) on the same date for the same member are reviewed together for Incidental, Mutually Exclusive, Transferred, or Unbundled relationships.

Modifier noteUnitedHealthcare Community Plan will not reimburse separately unless codes are reported with an appropriate modifier supported by coding guidance; informational modifiers do not override bundling without proper coding rationale.