ICD-10 code for syphilitic osteochondritis

The ICD-10-CM code for syphilitic osteochondritis is A50.02 (Early congenital syphilitic osteochondropathy). The official index lists 10 more specific codes, so check the documentation for details such as type, cause, site or severity before settling on A50.02.

Within A50.0 (early congenital syphilis, symptomatic), A50.02 is specifically for early congenital syphilitic osteochondropathy. Related codes cover early congenital syphilitic oculopathy (A50.01), early congenital syphilitic pharyngitis (A50.03), early congenital syphilitic pneumonia (A50.04), early congenital syphilitic rhinitis (A50.05), early cutaneous congenital syphilis (A50.06), early mucocutaneous congenital syphilis (A50.07), early visceral congenital syphilis (A50.08) and other early congenital syphilis, symptomatic (A50.09).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 867 (Other Infectious and Parasitic Diseases Diagnoses with MCC, relative weight 2.1859), DRG 868 (Other Infectious and Parasitic Diseases Diagnoses with CC, relative weight 1.0235) and DRG 869 (Other Infectious and Parasitic Diseases Diagnoses without CC/MCC, relative weight 0.6787), in MDC 18 (Infectious and Parasitic Diseases, Systemic or Unspecified Sites), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.