A50.55
Late congenital syphilitic arthropathy
HCC risk adjustment mapping
CMS-HCC V28
Bone/Joint/Muscle/Severe Soft Tissue Infections/Necrosis
CMS-HCC ESRD V24
Bone/Joint/Muscle Infections/Necrosis
Coding notes
Excludes 1 never coded together · Excludes 2 may co-exist
Any congenital syphilitic condition specified as late or manifest two years or more after birth.
diseases generally recognized as communicable or transmissible
certain localized infections - see body system-related chapters
carrier or suspected carrier of infectious disease (Z22.-) infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-) infectious and parasitic diseases specific to the perinatal period (P35-P39) influenza and other acute respiratory infections (J00-J22)
code to identify resistance to antimicrobial drugs (Z16.-)
Official Guidelines for A50.55
FY 2026 ›Subsections
- I.C.1.aHuman Immunodeficiency Virus (HIV) Infections
- I.C.1.bInfectious agents as the cause of diseases classified to other chapters
- I.C.1.cInfections resistant to antibiotics
- I.C.1.dSepsis, Severe Sepsis, and Septic Shock Infections resistant to antibiotics
- I.C.1.eMethicillin Resistant Staphylococcus aureus (MRSA) Conditions
- I.C.1.fZika virus infections
- I.C.1.gCoronavirus infections
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