A50.55
A50.55: Late congenital syphilitic arthropathy
Billable / specific codeICD-10-CM
A50.55 is a billable, specific ICD-10-CM code for late congenital syphilitic arthropathy. It is valid for submission on a claim.
Check A50.55 with the rest of the claim: free scrubberRisk adjustment
A50.55 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 92 Bone/Joint/Muscle/Severe Soft Tissue Infections/Necrosis0.479 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score. Look up the whole chart to see which of its HCCs the hierarchy would zero.
Alphabetic index entries that lead here
- Arthritis, arthritic›syphilitic›congenital
- Hydrarthrosis›syphilitic›congenital
- Arthropathy›in›syphilis›congenital
- Syphilis, syphilitic›congenital›late, or 2 years or more after birth NEC›symptomatic or with manifestations NEC›arthropathy
Code history
Unchanged in every release from FY2024 to FY2027.