ICD-10-CM · Chapter 1 · A00–B99
A51.44
Secondary syphilitic nephritis
Certain infectious and parasitic diseases
Quick facts
- Code
- A51.44
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 1 — Certain infectious and parasitic diseases
- Category
- A51 — Early syphilis
- Specificity
- 5 characters
How coders use this code
ICD-10-CM A51.44 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of secondary syphilitic nephritis. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in A51
- A51Early syphilis
- A51.0Primary genital syphilis
- A51.1Primary anal syphilis
- A51.2Primary syphilis of other sites
- A51.3Secondary syphilis of skin and mucous membranes
- A51.31Condyloma latum
- A51.32Syphilitic alopecia
- A51.39Other secondary syphilis of skin
- A51.4Other secondary syphilis
- A51.41Secondary syphilitic meningitis
- A51.42Secondary syphilitic female pelvic disease
- A51.43Secondary syphilitic oculopathy
- A51.45Secondary syphilitic hepatitis
- A51.46Secondary syphilitic osteopathy
- A51.49Other secondary syphilitic conditions
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