ICD-10-CM category A50: Congenital syphilis
Category A50 is a heading in chapter 1 (Certain infectious and parasitic diseases (A00-B99)), section Infections with a predominantly sexual mode of transmission (A50-A64). It is not billable; report one of the 33 complete codes below.
Billable codes in A50
| Code | Description |
|---|---|
| A50.01 | Early congenital syphilitic oculopathy |
| A50.02 | Early congenital syphilitic osteochondropathy |
| A50.03 | Early congenital syphilitic pharyngitis |
| A50.04 | Early congenital syphilitic pneumonia |
| A50.05 | Early congenital syphilitic rhinitis |
| A50.06 | Early cutaneous congenital syphilis |
| A50.07 | Early mucocutaneous congenital syphilis |
| A50.08 | Early visceral congenital syphilis |
| A50.09 | Other early congenital syphilis, symptomatic |
| A50.1 | Early congenital syphilis, latent |
| A50.2 | Early congenital syphilis, unspecified |
| A50.30 | Late congenital syphilitic oculopathy, unspecified |
| A50.31 | Late congenital syphilitic interstitial keratitis |
| A50.32 | Late congenital syphilitic chorioretinitis |
| A50.39 | Other late congenital syphilitic oculopathy |
| A50.40 | Late congenital neurosyphilis, unspecified |
| A50.41 | Late congenital syphilitic meningitis |
| A50.42 | Late congenital syphilitic encephalitis |
| A50.43 | Late congenital syphilitic polyneuropathy |
| A50.44 | Late congenital syphilitic optic nerve atrophy |
| A50.45 | Juvenile general paresis |
| A50.49 | Other late congenital neurosyphilis |
| A50.51 | Clutton's joints |
| A50.52 | Hutchinson's teeth |
| A50.53 | Hutchinson's triad |
| A50.54 | Late congenital cardiovascular syphilis |
| A50.55 | Late congenital syphilitic arthropathy |
| A50.56 | Late congenital syphilitic osteochondropathy |
| A50.57 | Syphilitic saddle nose |
| A50.59 | Other late congenital syphilis, symptomatic |
| A50.6 | Late congenital syphilis, latent |
| A50.7 | Late congenital syphilis, unspecified |
| A50.9 | Congenital syphilis, unspecified |
Sources
Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-10. Verify against the primary file before billing or contracting decisions. The reference methodology explains how each figure is computed from these files.
- ICD-10-CM FY2027 tabular order file (category titles)Version FY2027 · effective 2026-10-01 · file icd10cm_order_2027.txtSHA-256 38981fb2c1226e2b…
- ICD-10-CM FY2027 tabular list (chapter titles and ranges)Version FY2027 · effective 2026-10-01 · file 2027-code-tables-tabular-index.zipSHA-256 37baa476323714be…
- ICD-10-CM FY2027 code descriptions addenda (codes added, deleted and revised)Version FY2027 · effective 2026-10-01 · file icd10cm_codes_addenda_2027.txtSHA-256 cfba025073235af4…
- ICD-10 MS-DRG Definitions Manual v44 (text)Version v44 · effective 2026-10-01 · file fy2027-fr-icd10-ms-drg-definitions-manual-files-v44.zipSHA-256 ae4f6c11727fe91f…
- IPPS FY2027 Tables 6A-6K: new, invalid and revised ICD-10-CM/PCS codes, CC/MCC list changes and CC exclusionsVersion FY2027 (final rule; not reissued by CN3) · effective 2026-10-01 · file fy2027-ipps-fr-tables-6a-6k.zipSHA-256 ca0af87b0869a405…
- ICD-10-CM FY2027 POA-exempt codes (full list, additions, deletions and revisions)Version FY2027 · effective 2026-10-01 · file 2027-poa-exempt-codes.zipSHA-256 03f55091045024d0…
- ICD-10-CM to CMS-HCC V28 mappings, payment year 2027 initialVersion PY2027 initial ICD-10-CM mappings (dates of service 2026) · effective 2027-01-01 · file 2027 Initial ICD-10-CM Mappings.csvSHA-256 9c260b06d0dd2806…
- Medicare Coverage Database, current Billing and Coding Articles exportVersion MCD release 2026-10-08 · effective 2026-10-04 · file article.csvSHA-256 5e95c4a8ac3664be…
Codes from the FY2027 ICD-10-CM files (all chapters). Report the code that matches the documentation and the Official Guidelines; this list is not coding advice.