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CurrentCurativePolicy 73

71. DME - Gradient Compression Garments for Lymphedema (HCPCS A6549)

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This policy governs medical-necessity, documentation, coding, quantity, and replacement requirements for gradient compression garments and related lymphedema compression treatment items, including HCPCS A6549, for members of all ages.

Policy Summary

PayerCurative

Policy71. DME - Gradient Compression Garments for Lymphedema (HCPCS A6549)

Policy CodePolicy N/A

Change TypeNo material clinical or coverage changes

Effective DateNovember 5, 2026

Next Review DateN/A

Key ActionDocument the lymphedema diagnosis, authorized written order, treatment plan, measurements, fitting, laterality, and requested quantity for each item.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes in this revision.

A6549NOS gradient compression garment code

3Daytime garments or wraps per affected body part / 6 months

2Nighttime garments per affected body part / 2 years

5Core medical-necessity criteria

All agesApplicable population

Coverage Criteria

General lymphedema compression items

Covered when ALL of the following are met:

General lymphedema compression criteria

Diagnosis: Documented primary or secondary lymphedema of the body part to be treated, established by clinical evaluation.
Supporting findings may include persistent swelling not fully resolved by elevation, a positive Stemmer sign, pitting or fibrotic tissue change, limb volume or circumference difference documented over time, or lymphoscintigraphy or other imaging.
Order: Written order from a physician or from a PA, NP, or CNS as authorized by state law identifying item type, affected body part, compression level, and daytime or nighttime use.
Treatment plan: The item is part of a documented lymphedema treatment plan, including intensive-phase wraps or bandaging, maintenance-phase garments after or alongside decongestive therapy, or a maintenance plan for stable lymphedema.

Policy Summary

PayerCurative

Policy71. DME - Gradient Compression Garments for Lymphedema (HCPCS A6549)

Policy CodePolicy N/A

Change TypeNo material clinical or coverage changes

Effective DateNovember 5, 2026

Next Review DateN/A

Key ActionDocument the lymphedema diagnosis, authorized written order, treatment plan, measurements, fitting, laterality, and requested quantity for each item.

SourceLink

On This Page

Measurements and fitting: Circumferential and length measurements, as applicable, and fitting are documented, with laterality for paired body parts.

Quantity is within the applicable frequency allowance or a replacement criterion is met.

Use of NOS code A6549

Covered under A6549 when ALL of the following are met in addition to the general criteria:

NOS code use

No specific code: No specific standard or custom, daytime or nighttime, garment or wrap HCPCS code describes the item furnished.
Narrative description: The claim or request includes a narrative describing the item and why no specific code applies.

Custom-fitted garments

Custom-fitted garment is medically necessary when ANY of the following are documented:

Custom versus standard garment

Anatomical fit limitation: Limb shape, size, or contour, such as a large circumference difference, skin folds, or a distorted shape, cannot be fitted by a standard garment while maintaining accurate gradient compression.
Failed standard garment: A standard garment was tried and caused slippage, tourniquet effect, skin breakdown, or failure to maintain limb volume.
No standard garment available: Lymphedema affects a body region for which no standard garment is made, such as the head and neck, trunk, or genital region.

Continuation and replacement

Replacement is medically necessary when ANY of the following is met:

Replacement criteria

Scheduled replacement: Replacement is within the applicable frequency allowance.Up to 3 daytime garments or wraps per affected body part every 6 months; up to 2 nighttime garments per affected body part every 2 years
Loss, theft, or damage: The garment or wrap was lost, stolen, or irreparably damaged, and the event is documented.
Change in condition: The member's limb volume, shape, weight, or affected body part has changed enough to require a new size or type, with re-measurement documented.

Does not meet criteria

The following circumstances do not meet medical-necessity criteria under this policy. Requests in these circumstances are referred for physician review; they are not denied by an automated system or a non-physician reviewer.

Noncovered scenarios

Non-lymphedema diagnosis: A compression garment is requested for a non-lymphedema diagnosis, including uncomplicated chronic venous insufficiency, dependent edema, lipedema without lymphedema, prophylaxis without diagnosed lymphedema, athletic use, or comfort use.
Where venous disease and lymphedema coexist, the lymphedema diagnosis governs and coverage applies.
Incorrect A6549 billing: A6549 is billed for an item described by a specific HCPCS code.
The specific code must be used; this is a coding issue rather than a clinical denial.
Excess quantity: Quantity exceeds the applicable frequency allowance without loss, theft, irreparable damage, or a documented change in condition.
Anti-embolism stockings are requested for thrombosis prophylaxis.
These are not lymphedema compression treatment items.

This policy establishes medical-necessity, documentation, coding, measurement, quantity, and replacement requirements for gradient compression garments and related lymphedema compression items. It applies to standard and custom daytime garments, nighttime garments, wraps with adjustable straps, accessories, and bandaging supplies. Pneumatic compression devices, compression stockings used as surgical dressings for venous ulcers, and external breast prostheses or post-mastectomy garments are addressed outside this policy under their related policies. When a specific HCPCS code describes the item, that code must be used; the same clinical criteria apply.

Anti-embolism stockings used for thrombosis prophylaxis are outside the lymphedema compression treatment benefit and are not covered as lymphedema treatment items.

Compression garments requested for a non-lymphedema diagnosis do not meet this benefit, including uncomplicated chronic venous insufficiency, dependent edema, lipedema without lymphedema, prophylaxis without diagnosed lymphedema, athletic use, or comfort use. When venous disease and lymphedema coexist, the documented lymphedema diagnosis governs coverage.

Quantities exceeding the applicable frequency allowance are not medically necessary when they represent duplicative supplies. Additional or replacement items require documentation of loss, theft, irreparable damage, or a change in medical or physical condition; otherwise, the request does not meet the quantity criteria. The standard allowances are up to 3 daytime garments or wraps per affected body part every 6 months and up to 2 nighttime garments per affected body part every 2 years.

Covered and Non-Covered Coding

Covered with criteria - NOS gradient compression garmentHCPCSCovered

A6549

Gradient compression garment, not otherwise specified

Specific lymphedema compression HCPCS codesHCPCS

A6515-A6529	Gradient compression wraps and nighttime garments
A6552-A6589	Daytime stockings, sleeves, gloves, gauntlets, and body-area garments, standard and custom
A6610	Body-area gradient compression garment code listed in the CMS HCPCS file
A6611	Body-area gradient compression garment code listed in the CMS HCPCS file
A6593	Compression garment accessories
A6594-A6609	Compression bandaging supplies

Typical lymphedema diagnosis codesICD-10

I89.0	Typical diagnosis code for lymphedema
I97.2	Typical diagnosis code for postmastectomy lymphedema syndrome
I97.89	Typical diagnosis code for post-procedural lymphedema
Q82.0	Typical diagnosis code for hereditary lymphedema

Laterality requirementsModifier

RT	Right laterality for paired body parts
LT	Left laterality for paired body parts

Not covered under this policy or out of scopeHCPCSNot Covered

A6531	Compression stocking used as a surgical dressing for venous ulcers; out of scope
A6532	Compression stocking used as a surgical dressing for venous ulcers; out of scope
A6545	Compression stocking used as a surgical dressing for venous ulcers; out of scope

Daytime Garments or Wraps

ItemDaytime gradient compression garments or wraps with adjustable straps

AllowanceUp to 3

ApplicationPer affected body part every 6 months

Nighttime Garments

ItemNighttime gradient compression garments

AllowanceUp to 2

ApplicationPer affected body part every 2 years

Prior Authorization and Provider Actions

Billing Rule

A6549 Coding Prerequisite

Use HCPCS A6549 only when no specific standard or custom, daytime or nighttime, garment or wrap code describes the item. The request or claim must include a narrative explaining the body area, garment type, compression level, whether it is standard or custom, and why no specific HCPCS code applies.

Confirm that no more specific HCPCS code describes the item before billing or requesting A6549.
Include the coding narrative with the authorization request and claim.

Prior Authorization

Core Authorization Criteria

Submit authorization for a gradient compression garment, wrap, or accessory only when the member has documented lymphedema of the body part to be treated, an authorized written order, and a documented lymphedema treatment plan. The request must identify the item, affected body part, compression level, intended daytime or nighttime use, measurements, fitting, laterality, and quantity or replacement rationale.

Document primary or secondary lymphedema and supporting clinical findings.
Obtain an order from a physician or an authorized PA, NP, or CNS.
Specify the intensive or maintenance phase of care and the requested quantity.

Documentation Required

Custom Garment Criteria

Support custom-fitted equipment when a standard garment cannot provide an accurate fit or effective gradient compression. Document the anatomical or fitting circumstance supporting customization.

Limb shape, size, contour, large circumference difference, skin folds, or distorted shape prevents standard fitting.
A tried standard garment caused slippage, tourniquet effect, skin breakdown, or failure to maintain limb volume.
The affected region has no standard garment, such as the head and neck, trunk, or genital region.

Documentation Required

Diagnosis and Supporting Findings

Document a diagnosis of primary or secondary lymphedema for the affected body part, including etiology and stage when recorded. Include clinical findings supporting the diagnosis, such as persistent swelling not fully relieved by elevation, positive Stemmer sign, pitting or fibrotic change, documented limb-volume or circumference differences over time, or lymphoscintigraphy or other imaging.

Typical diagnosis codes include I89.0, I97.2, I97.89, and Q82.0.
Identify the body part or parts to be treated.

Prior Authorization

Authorized Written Order

Provide an authorized written order identifying the item type, affected body part, compression level, and whether the item is for daytime or nighttime use.

The order must be from a physician or from a PA, NP, or CNS authorized under state law.
Ensure the order matches the item and body part requested.

Documentation Required

Treatment Plan and Phase of Care

Document that the requested item is part of a lymphedema treatment plan, including the phase of care and relevant treatment details.

Intensive phase: wraps or bandaging as part of decongestive therapy.
Maintenance phase: garments after or alongside decongestive therapy, or a maintenance plan for stable lymphedema.

Documentation Required

Measurements, Fitting, and Laterality

Include circumferential and length measurements as applicable to the garment, the fitting record, and laterality for paired body parts.

Identify right or left side (RT or LT) when treating paired limbs or other paired body parts.
Update measurements and fitting documentation when needed to support the requested item.

Billing Rule

A6549 Narrative Requirements

For A6549, describe the requested item and explain why no specific HCPCS code applies. The narrative must identify the body area, garment or wrap type, compression level, and whether it is standard or custom.

State that standard and custom, daytime and nighttime, garment and wrap codes were reviewed.
Do not use A6549 as a substitute for an applicable specific code.

Prior Authorization

Custom Garment and Replacement Justification

Document the medical necessity of custom equipment and any replacement, including the quantity requested, prior items furnished during the applicable frequency period, and the reason replacement is needed. Quantities must remain within the applicable allowance unless a documented replacement criterion supports the request.

For custom garments, explain why a standard garment is inadequate, including anatomical limitations or documented failure or intolerance.
For replacement, document loss, theft, irreparable damage, change in condition, or another supported reason; include the prior item and furnishing date when available.
Daytime garments or adjustable-strap wraps: up to 3 per affected body part every 6 months.
Nighttime garments: up to 2 per affected body part every 2 years.
Bandaging quantities must match the documented intensive-phase plan; necessary liners, padding, fillers, and zippers may be covered accessories.

Denial Risk

No Documented Lymphedema

Requests for compression garments based only on a non-lymphedema diagnosis do not meet this lymphedema benefit's medical-necessity criteria and require physician review rather than automated denial.

Examples include uncomplicated chronic venous insufficiency, dependent edema, lipedema without lymphedema, prophylaxis without diagnosed lymphedema, and athletic or comfort use.
When venous disease and lymphedema coexist, document the lymphedema diagnosis; coverage is governed by the lymphedema criteria.

Billing Rule

Incorrect Use of A6549

Do not bill A6549 when a specific HCPCS code describes the furnished item. Redirect the request or claim to the applicable specific code; this is an incorrect-coding issue rather than a clinical denial.

Review standard and custom, daytime and nighttime, garment and wrap codes before using A6549.
If A6549 is appropriate, include the required item narrative and explanation.

Denial Risk

Excess Quantity Requires Justification

Do not request quantities beyond the applicable frequency allowance without documenting a supported replacement or clinical need. Excess duplicative supplies without justification do not meet medical-necessity criteria and require physician review.

Document loss, theft, irreparable damage, or change in condition when requesting replacement beyond the allowance.
Include prior items furnished during the frequency period and the reason each replacement is needed.

Denial Risk

Anti-Embolism Stockings

Anti-embolism stockings used for thrombosis prophylaxis are not lymphedema compression treatment items and are not covered under this lymphedema benefit.

Do not submit prophylactic anti-embolism stockings as gradient compression garments for diagnosed lymphedema.

Denial Risk

Acute Infection or Possible DVT

Hold compression and address urgent clinical concerns before applying or authorizing compression when acute infection or possible DVT is present.

Spreading erythema, warmth, or fever suggesting cellulitis or lymphangitis: arrange urgent medical treatment; compression is held until infection is controlled, while garment authorization may proceed in parallel.
Acute unilateral swelling with pain suggesting DVT: obtain urgent evaluation before compression is applied.

Denial Risk

Compression Safety Review

Significant arterial insufficiency or decompensated heart failure requires clinical review before compression proceeds. Compression may be contraindicated or the compression level may need modification.

Refer for physician review when there is significant arterial insufficiency, such as an ankle-brachial index below 0.5.
Refer for physician review for decompensated heart failure and document the approved compression level.

Clinical Background

Lymphedema is chronic swelling caused by impaired lymphatic drainage. It may be primary or secondary to cancer treatment, infection, trauma, or venous disease. Without continuous compression, lymphedema may progress to fibrosis and skin changes and may increase the risk of recurrent cellulitis. Compression garments are central to the maintenance phase of complete decongestive therapy.

Key Definitions

Gradient Compression

Compression patternHigher compression at the distal end

Direction of decreaseCompression decreases toward the proximal end

Body areaApplies to the affected limb or body part

Custom-Fitted Gradient Compression Garment

Sizing and shapeUniquely sized and shaped to the exact dimensions of the affected extremity or body part

PurposeDelivers accurate gradient compression for lymphedema

Garment typeCustom-fitted gradient compression garment

Affected Body Part

DefinitionEach extremity or body region with lymphedema

ExamplesRight arm, left leg, trunk, head and neck, or genital region

Quantity applicationQuantity allowances apply separately to each affected body part

NOS Code

MeaningNOS means not otherwise specified

When usedUse the HCPCS code only when no specific code describes the item

Claim requirementClaims require a narrative description of the item

Medical-Necessity Requirements

General equipment criteria

All lymphedema compression equipment must meet ALL of the following general medical-necessity requirements:

Equipment medical necessity: The item treats a documented lymphedema-affected body part, is ordered by an authorized practitioner, is included in a documented treatment plan, is measured and fitted with laterality where applicable, and is requested within the applicable quantity or replacement allowance.

Applicable to lymphedema compression garments, wraps, accessories, and bandaging supplies.

Custom garment criteria

Custom equipment requires ANY of the following qualifying conditions:

Custom-fitted equipment: Custom fitting is medically necessary when the limb shape, size, or contour cannot be accurately fitted by a standard garment; a standard garment was tried and caused slippage, tourniquet effect, skin breakdown, or failure to maintain limb volume; or lymphedema affects a body region for which no standard garment is made.

Examples of regions without standard garments include the head and neck, trunk, and genital region.

Replacement and Quantity Limits

Daytime Garments and Adjustable-Strap Wraps

Covered itemsDaytime gradient compression garments and wraps with adjustable straps

Replacement allowanceUp to 3 per affected body part every 6 months

Other replacement basesReplacement may also be medically necessary for documented loss, theft, irreparable damage, or a documented change in medical or physical condition

Nighttime Gradient Compression Garments

Covered itemNighttime gradient compression garments

Replacement allowanceUp to 2 per affected body part every 2 years

Other replacement basesReplacement may also be medically necessary for documented loss, theft, irreparable damage, or a documented change in medical or physical condition

Compression Bandaging Supplies

ItemCompression bandaging supplies

FrequencyNo fixed frequency

Quantity basisQuantity must match the documented intensive-phase treatment plan

Compression Garment Accessories

Included accessoriesLiners, padding, fillers, and zippers

Replacement standardCovered when necessary for effective use of a covered garment or wrap

FrequencyNo fixed interval stated

Documentation Requirements

Documentation Required

Submit complete medical-necessity documentation

Include the medical-necessity and item-specific documentation for every lymphedema compression request: diagnosis and affected body part, supporting clinical findings, authorized written order, treatment phase and plan, measurements, fitting, laterality, requested quantity, prior items furnished during the frequency period, and replacement rationale when applicable.

Billing Rule

Provide additional A6549 documentation

For HCPCS A6549, provide a narrative describing the body area, garment type, compression level, standard or custom status, and why no specific HCPCS code applies.

Documentation Required

Document the basis for custom fitting

For a custom-fitted garment, document why a standard garment is not adequate. Identify the anatomical fit limitation, failed standard garment and resulting problem, or lack of a standard garment for the affected body region.

Not Covered and Out of Scope

The following are not covered under this policy or are outside its scope: pneumatic compression devices; compression stockings used as surgical dressings for venous ulcers; external breast prostheses and post-mastectomy garments; anti-embolism stockings; compression items for non-lymphedema diagnoses; and HCPCS A6549 when a specific HCPCS code describes the furnished item. Related services or equipment should be evaluated under the applicable policy or billed using the specific code when one exists.