A50.43: Late congenital syphilitic polyneuropathy
A50.43, late congenital syphilitic polyneuropathy, is listed as a covered diagnosis in 5 Medicare billing and coding articles that apply to 2 HCPCS Level II codes, including G0127 (Trimming of dystrophic nails, any number), G0451 (Development testing, with interpretation and report, per…). The articles come from 4 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 A50.43 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 | — | 4 |
| G0451 | Development testing, with interpretation and report, per standardized instrument form | Carrier judgment | — | 1 |
Medicare policy articles listing A50.43
- 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
- A56937: Billing and Coding: Psychiatry and Psychology Services (Wellpoint Federal (MAC - Part A, MAC - Part B); 1 Level II codes). LCD with the same title: L33632, L34616
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 A50 diagnoses (Congenital syphilis)
- A50.41 — Late congenital syphilitic meningitis
- A50.42 — Late congenital syphilitic encephalitis
- A50.45 — Juvenile general paresis
Frequently asked questions
Does Medicare cover A50.43 (Late congenital syphilitic polyneuropathy)?
Medicare covers items and services, not diagnoses. 5 Medicare billing and coding articles list A50.43 as a covered diagnosis for 2 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 A50.43?
The Level II codes from the policies most specific to this diagnosis are G0127 (Trimming of dystrophic nails, any number, 4 articles); G0451 (Development testing, with interpretation and report, per…, 1 article). Code choice depends on the item supplied; check each code's descriptor.
Which Medicare policy articles list A50.43?
A57759 (Billing and Coding: Routine Foot Care and Debridement of Nails); A57954 (Billing and Coding: Routine Foot Care); A57193 (Billing and Coding: Routine Foot Care and Debridement of Nails), and 2 more articles.
What is ICD-10-CM code A50.43?
A50.43 is the ICD-10-CM code for late congenital syphilitic polyneuropathy, in category A50 (Congenital syphilis), chapter 1: Certain infectious and parasitic diseases.
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 1: Certain infectious and parasitic diseases · All diagnoses · HCPCS lookup