ICD-10-CM · FY 2026 APRIL UPDATE
A51.4
Other secondary syphilis
Diagnosis reference
Nonbillable categoryThis entry is a category or subcategory. Choose the appropriate billable descendant based on the clinical documentation.
Effective periodOctober 1, 2026–September 30, 2027
SourceCMS ICD-10-CM order file
ClassificationDiagnosis · clinical modification
Related entries
Up to 30 descendants in this category
| CODE | DESCRIPTION | TYPE |
|---|---|---|
| A51.41 | Secondary syphilitic meningitis | Billable |
| A51.42 | Secondary syphilitic female pelvic disease | Billable |
| A51.43 | Secondary syphilitic oculopathy | Billable |
| A51.44 | Secondary syphilitic nephritis | Billable |
| A51.45 | Secondary syphilitic hepatitis | Billable |
| A51.46 | Secondary syphilitic osteopathy | Billable |
| A51.49 | Other secondary syphilitic conditions | Billable |
Use the complete reference
This reference does not reproduce the full tabular hierarchy, inclusion notes, Excludes1/2 notes, sequencing instructions, or seventh-character rules. Review the official tables and coding guidelines.
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