M34.82: Systemic sclerosis with myopathy
M34.82, systemic sclerosis with myopathy, is listed as a covered diagnosis in 9 Medicare billing and coding articles that apply to 18 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 M34.82 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 |
| J0881 | Injection, darbepoetin alfa, 1 microgram (non-esrd use) | Special coverage instructions apply | — | 1 |
| J0885 | Injection, epoetin alfa, (for non-esrd use), 1000 units | Special coverage instructions apply | — | 1 |
| Q5106 | Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units | Special coverage instructions apply | — | 1 |
| J0882 | Injection, darbepoetin alfa, 1 microgram (for esrd on dialysis) | Special coverage instructions apply | — | 1 |
| J0888 | Injection, epoetin beta, 1 microgram, (for non esrd use) | Special coverage instructions apply | — | 1 |
| Q5105 | Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for esrd on dialysis), 100 units | Special coverage instructions apply | — | 1 |
| J0887 | Injection, epoetin beta, 1 microgram, (for esrd on dialysis) | Special coverage instructions apply | — | 1 |
| J0890 | Injection, peginesatide, 0.1 mg (for esrd on dialysis) | Carrier judgment | — | 1 |
| Q4081 | Injection, epoetin alfa, 100 units (for esrd on dialysis) | Special coverage instructions apply | — | 1 |
| J9312 | Injection, rituximab, 10 mg | Special coverage instructions apply | — | 1 |
| Q5123 | Injection, rituximab-arrx, biosimilar, (riabni), 10 mg | Carrier judgment | — | 1 |
| Q5119 | Injection, rituximab-pvvr, biosimilar, (ruxience), 10 mg | Carrier judgment | — | 1 |
| Q5115 | Injection, rituximab-abbs, biosimilar, (truxima), 10 mg | Special coverage instructions apply | — | 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 M34.82
- 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
- A56795: Billing and Coding: Erythropoiesis Stimulating Agents (ESAs) (WPS Insurance Corporation (MAC - Part A, MAC - Part B); 9 Level II codes). LCD with the same title: L34633
- A59101: Billing and Coding: Off-label Use of Rituximab and Rituximab Biosimilars (Wellpoint Federal (MAC - Part A, MAC - Part B); 4 Level II codes). LCD with the same title: L38920, L39297
- 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 M34 diagnoses (Systemic sclerosis [scleroderma])
- M34.81 — Systemic sclerosis with lung involvement
- M34.83 — Systemic sclerosis with polyneuropathy
- M34.89 — Other systemic sclerosis
- M34.0 — Progressive systemic sclerosis
- M34.1 — CR(E)ST syndrome
- M34.2 — Systemic sclerosis induced by drug and chemical
Frequently asked questions
Does Medicare cover M34.82 (Systemic sclerosis with myopathy)?
Medicare covers items and services, not diagnoses. 9 Medicare billing and coding articles list M34.82 as a covered diagnosis for 18 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 M34.82?
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); J0881 (Injection, darbepoetin alfa, 1 microgram (non-esrd use), 1 article). Code choice depends on the item supplied; check each code's descriptor.
What does Medicare pay for equipment billed with M34.82?
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 M34.82?
A52510 (Mechanical In-exsufflation Devices - Policy Article); A52494 (High Frequency Chest Wall Oscillation Devices - Policy Article); A56795 (Billing and Coding: Erythropoiesis Stimulating Agents (ESAs)), and 6 more articles.
What is ICD-10-CM code M34.82?
M34.82 is the ICD-10-CM code for systemic sclerosis with myopathy, in category M34 (Systemic sclerosis [scleroderma]), chapter 13: Diseases of the musculoskeletal system and connective tissue.
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 13: Diseases of the musculoskeletal system and connective tissue · All diagnoses · HCPCS lookup