G13.1: Other systemic atrophy primarily affecting central nervous system in neoplastic disease
G13.1, other systemic atrophy primarily affecting central nervous system in neoplastic disease, is listed as a covered diagnosis in 12 Medicare billing and coding articles that apply to 15 HCPCS Level II codes, including G0127 (Trimming of dystrophic nails, any number), J1569 (Injection, immune globulin, (gammagard liquid/gammagard…), J1561 (Injection, immune globulin, (gamunex-c/gammaked)…). The articles come from 7 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 G13.1 as a covered diagnosis
| Code | Description | Medicare coverage | DMEPOS fee 2026 (state range) | Articles listing it |
|---|---|---|---|---|
| G0127 | Trimming of dystrophic nails, any number | Special coverage instructions apply | — | 6 |
| J1569 | Injection, immune globulin, (gammagard liquid/gammagard liquid erc), 500 mg | Special coverage instructions apply | — | 1 |
| J1561 | Injection, immune globulin, (gamunex-c/gammaked), non-lyophilized (e.g., liquid), 500 mg | Special coverage instructions apply | — | 1 |
| J1459 | Injection, immune globulin (privigen), intravenous, non-lyophilized (e.g., liquid), 500 mg | Carrier judgment | — | 1 |
| J1576 | Injection, immune globulin (panzyga), intravenous, non-lyophilized (e.g., liquid), 500 mg | Special coverage instructions apply | — | 1 |
| J1557 | Injection, immune globulin, (gammaplex), intravenous, non-lyophilized (e.g., liquid), 500 mg | Carrier judgment | — | 1 |
| J1556 | Injection, immune globulin (bivigam), 500 mg | Carrier judgment | — | 1 |
| J1568 | Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mg | Carrier judgment | — | 1 |
| J1566 | Injection, immune globulin, intravenous, lyophilized (e.g., powder), not otherwise specified, 500 mg | Special coverage instructions apply | — | 1 |
| J1554 | Injection, immune globulin (asceniv), 500 mg | Carrier judgment | — | 1 |
| J1599 | Injection, immune globulin, intravenous, non-lyophilized (e.g., liquid), not otherwise specified, 500 mg | Carrier judgment | — | 1 |
| J2791 | Injection, rho(d) immune globulin (human), (rhophylac), intramuscular or intravenous, 100 iu | Special coverage instructions apply | — | 1 |
| J1552 | Injection, immune globulin (alyglo), 500 mg | Carrier judgment | — | 1 |
| J2792 | Injection, rho d immune globulin, intravenous, human, solvent detergent, 100 iu | 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 G13.1
- A56718: Billing and Coding: Intravenous Immunoglobulin (IVIG) (Palmetto GBA (MAC - Part A, MAC - Part B); 13 Level II codes). LCD with the same title: L34580
- A57759: Billing and Coding: Routine Foot Care and Debridement of Nails (Wellpoint Federal (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L33636, L34246
- A57954: Billing and Coding: Routine Foot Care (Noridian Healthcare Solutions, LLC (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L33941, L35138, L37643
- A57193: Billing and Coding: Routine Foot Care and Debridement of Nails (CGS Administrators, LLC (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L33636, L34246
- A52996: Billing and Coding: Routine Foot Care (Novitas Solutions, Inc. (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L33941, L35138, L37643
- A56232: Billing and Coding: Foot Care (WPS Insurance Corporation (MAC - Part A, MAC - Part B); 1 Level II codes)
- A57188: Billing and Coding: Routine Foot Care (First Coast Service Options, Inc. (MAC - Part B); 1 Level II codes). LCD with the same title: L33941, L35138, L37643
- 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 G13 diagnoses (Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere)
- G13.0 — Paraneoplastic neuromyopathy and neuropathy
Frequently asked questions
Does Medicare cover G13.1 (Other systemic atrophy primarily affecting central nervous…)?
Medicare covers items and services, not diagnoses. 12 Medicare billing and coding articles list G13.1 as a covered diagnosis for 15 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 G13.1?
The Level II codes from the policies most specific to this diagnosis are G0127 (Trimming of dystrophic nails, any number, 6 articles); J1569 (Injection, immune globulin, (gammagard liquid/gammagard…, 1 article); J1561 (Injection, immune globulin, (gamunex-c/gammaked)…, 1 article); J1459 (Injection, immune globulin (privigen), intravenous…, 1 article); J1576 (Injection, immune globulin (panzyga), intravenous…, 1 article). Code choice depends on the item supplied; check each code's descriptor.
Which Medicare policy articles list G13.1?
A56718 (Billing and Coding: Intravenous Immunoglobulin (IVIG)); A57759 (Billing and Coding: Routine Foot Care and Debridement of Nails); A57954 (Billing and Coding: Routine Foot Care), and 9 more articles.
What is ICD-10-CM code G13.1?
G13.1 is the ICD-10-CM code for other systemic atrophy primarily affecting central nervous system in neoplastic disease, in category G13 (Systemic atrophies primarily affecting central nervous system in diseases classified elsewhere), chapter 6: Diseases of the nervous system.
Next steps
- Run a reimbursement report for a device billed under G0127
- Watch G0127 for fee, coverage and descriptor changes
- Build a full Medicare revenue model for G0127
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