ICD-10-CM diagnosis code
A52.77 Syphilis of bone and joint
- Billable
- Yes, a complete code (FY2026)
- Category
- A52 Late syphilis
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Other codes in A52
30 complete codes in this category.
- A52.3Neurosyphilis, unspecified
- A52.71Late syphilitic oculopathy
- A52.72Syphilis of lung and bronchus
- A52.73Symptomatic late syphilis of other respiratory organs
- A52.74Syphilis of liver and other viscera
- A52.75Syphilis of kidney and ureter
- A52.76Other genitourinary symptomatic late syphilis
- A52.77Syphilis of bone and joint
- A52.78Syphilis of other musculoskeletal tissue
- A52.79Other symptomatic late syphilis
- A52.8Late syphilis, latent
- A52.9Late syphilis, unspecified
Documentation tips
- Make sure the note supports every element of the title, “Syphilis of bone and joint”: each detail in it should be traceable to the history, examination or assessment.
- Code to the highest specificity the documentation supports. If a detail is missing from the note, add it to the note rather than choosing a less specific code by default.
- Check the Tabular List and official guidelines for instructional notes (“code first”, “use additional code”, Excludes1/Excludes2) that apply to A52.
The international WHO ICD-10 also has A52, with its inclusion and exclusion notes; titles and detail can differ from ICD-10-CM.
ICD-10-CM is developed by the National Center for Health Statistics (NCHS), Centers for Disease Control and Prevention, U.S. Department of Health and Human Services, and is based on the WHO ICD-10. Codes and titles are reproduced unchanged from the FY2026 code list (effective 1 October 2025). Their use here does not imply endorsement by CDC, HHS or the U.S. Government. Changes effective on or after 1 October 2026 may not be reflected yet; check the current release at cdc.gov or cms.gov before submitting claims.
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