MCMedicalCodingSoftware
A51.46

A51.46: Secondary syphilitic osteopathy

Billable / specific codeICD-10-CM

A51.46 is a billable, specific ICD-10-CM code for secondary syphilitic osteopathy. It is valid for submission on a claim.

Check A51.46 with the rest of the claim: free scrubber

Other codes that can never be billed with A51.46

Their own Excludes1 notes name this code, so the conflict is not listed above.

  • M90Osteopathies in diseases classified elsewhere

Risk adjustment

No CMS-HCC V28 category: this code does not change a RAF score.

Alphabetic index entries that lead here

  • Periostitis›syphilitic›secondary
  • Syphilis, syphilitic›bone›secondary
  • Syphilis, syphilitic›periosteum›early(secondary)
  • Syphilis, syphilitic›secondary›bone
  • Syphilis, syphilitic›secondary›periosteum, periostitis

Code history

Unchanged in every release from FY2024 to FY2027.

Other codes under A51.4

ICD-10-CMFY2027· effective October 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release: see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.