G71.8: Other primary disorders of muscles
G71.8, other primary disorders of muscles, is listed as a covered diagnosis in 7 Medicare billing and coding articles that apply to 5 HCPCS Level II codes, including A7020 (Interface for cough stimulating device, includes all…), E0483 (High frequency chest wall oscillation system, with full…), A7025 (High frequency chest wall oscillation system vest…). 4 of these codes have a 2026 DMEPOS fee schedule amount; A7020 pays $19.87 to $23.81 (NU) depending on the state. The articles come from 5 Medicare contractors. A listed diagnosis supports medical necessity only; coverage still depends on the LCD's criteria and on documentation in the medical record.
HCPCS Level II codes with G71.8 as a covered diagnosis
| Code | Description | Medicare coverage | DMEPOS fee 2026 (state range) | Articles listing it |
|---|---|---|---|---|
| A7020 | Interface for cough stimulating device, includes all components, replacement only | Carrier judgment | $19.87–$23.81 (NU) | 1 |
| E0483 | High frequency chest wall oscillation system, with full anterior and/or posterior thoracic region receiving simultaneous external oscillation, includes all accessories and supplies, each | Carrier judgment | $1,515.12–$1,818.13 (RR) | 1 |
| A7025 | High frequency chest wall oscillation system vest, replacement for use with patient owned equipment, each | Carrier judgment | $61.99–$74.42 (RR) | 1 |
| A7026 | High frequency chest wall oscillation system hose, replacement for use with patient owned equipment, each | Carrier judgment | $40.96–$49.15 (NU) | 1 |
| G0255 | Current perception threshold/sensory nerve conduction test, (snct) per limb, any nerve | Non-covered by Medicare | Not covered | 5 |
Medicare policy articles listing G71.8
- A52510: Mechanical In-exsufflation Devices - Policy Article (CGS Administrators, LLC (DME MAC) Noridian Healthcare Solutions, LLC (DME MAC); 1 Level II codes). LCD with the same title: L33795
- A52494: High Frequency Chest Wall Oscillation Devices - Policy Article (CGS Administrators, LLC (DME MAC) Noridian Healthcare Solutions, LLC (DME MAC); 3 Level II codes). LCD with the same title: L33785
- A57307: Billing and Coding: Nerve Conduction Studies and Electromyography (CGS Administrators, LLC (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A57478: Billing and Coding: Nerve Conduction Studies and Electromyography (WPS Insurance Corporation (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A54969: Billing and Coding: Nerve Conduction Studies and Electromyography (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A57668: Billing and Coding: Nerve Conduction Studies and Electromyography (Wellpoint Federal (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
- A56619: Billing and Coding: Nerve Conduction Studies and Electromyography (Palmetto GBA (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L34594, L34859, L35048, L35081
A diagnosis listed as covered in a billing and coding article supports medical necessity for the article's codes; it does not guarantee payment. Coverage depends on the LCD's criteria, the contractor's jurisdiction and documentation in the medical record.
Other G71 diagnoses (Primary disorders of muscles)
- G71.00 — Muscular dystrophy, unspecified
- G71.01 — Duchenne or Becker muscular dystrophy
- G71.02 — Facioscapulohumeral muscular dystrophy
- G71.031 — Autosomal dominant limb girdle muscular dystrophy
- G71.032 — Autosomal recessive limb girdle muscular dystrophy due to calpain-3…
- G71.033 — Limb girdle muscular dystrophy due to dysferlin dysfunction
- G71.0340 — Limb girdle muscular dystrophy due to sarcoglycan dysfunction…
- G71.0341 — Limb girdle muscular dystrophy due to alpha sarcoglycan dysfunction
- G71.0342 — Limb girdle muscular dystrophy due to beta sarcoglycan dysfunction
- G71.0349 — Limb girdle muscular dystrophy due to other sarcoglycan dysfunction
- G71.035 — Limb girdle muscular dystrophy due to anoctamin-5 dysfunction
- G71.036 — Limb girdle muscular dystrophy due to fukutin related protein…
- G71.038 — Other limb girdle muscular dystrophy
- G71.039 — Limb girdle muscular dystrophy, unspecified
- G71.09 — Other specified muscular dystrophies
- G71.11 — Myotonic muscular dystrophy
- G71.12 — Myotonia congenita
- G71.13 — Myotonic chondrodystrophy
- G71.14 — Drug induced myotonia
- G71.19 — Other specified myotonic disorders
- G71.20 — Congenital myopathy, unspecified
- G71.21 — Nemaline myopathy
- G71.220 — X-linked myotubular myopathy
- G71.228 — Other centronuclear myopathy
- G71.29 — Other congenital myopathy
- G71.3 — Mitochondrial myopathy, not elsewhere classified
Frequently asked questions
Does Medicare cover G71.8 (Other primary disorders of muscles)?
Medicare covers items and services, not diagnoses. 7 Medicare billing and coding articles list G71.8 as a covered diagnosis for 5 HCPCS Level II codes: the diagnosis can support medical necessity for those codes, but payment still depends on the LCD's coverage criteria and the medical record.
Which HCPCS codes can be billed with ICD-10 G71.8?
The Level II codes from the policies most specific to this diagnosis are A7020 (Interface for cough stimulating device, includes all…, 1 article); E0483 (High frequency chest wall oscillation system, with full…, 1 article); A7025 (High frequency chest wall oscillation system vest…, 1 article); A7026 (High frequency chest wall oscillation system hose…, 1 article); G0255 (Current perception threshold/sensory nerve conduction…, 5 articles). Code choice depends on the item supplied; check each code's descriptor.
What does Medicare pay for equipment billed with G71.8?
Under the 2026 DMEPOS fee schedule (non-rural state fees): A7020 $19.87 to $23.81 (NU); E0483 $1,515.12 to $1,818.13 (RR); A7025 $61.99 to $74.42 (RR); A7026 $40.96 to $49.15 (NU). Medicare pays 80% of the allowed amount after the Part B deductible.
Which Medicare policy articles list G71.8?
A52510 (Mechanical In-exsufflation Devices - Policy Article); A52494 (High Frequency Chest Wall Oscillation Devices - Policy Article); A57307 (Billing and Coding: Nerve Conduction Studies and Electromyography), and 4 more articles.
What is ICD-10-CM code G71.8?
G71.8 is the ICD-10-CM code for other primary disorders of muscles, in category G71 (Primary disorders of muscles), chapter 6: Diseases of the nervous system.
Next steps
- Run a reimbursement report for a device billed under A7020
- Watch A7020 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for A7020
Sources: CMS Medicare Coverage Database billing and coding articles (covered ICD-10 code lists and HCPCS links); ICD-10-CM FY2026; CMS HCPCS Level II release October 2026; CMS DMEPOS fee schedule 2026 (non-rural state fees). Not billing or legal advice.
Chapter 6: Diseases of the nervous system · All diagnoses · HCPCS lookup