Other predominantly sexually transmitted diseases, not elsewhere classified (A63) ICD-10-CM
The A63 code range covers other predominantly sexually transmitted diseases, not elsewhere classified with 3 ICD-10-CM diagnosis codes. 2 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 2 Excludes
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Codes in the A63 Range 3 codes · 2 billable
About the A63 Code Range
ICD-10 code A63 covers sexually transmitted diseases that do not fit into other specific categories, with detailed subcodes like A63.0 and A63.8 addressing particular infections such as anogenital warts and various balanitis conditions. These codes are important for accurately classifying less common or unspecified sexually transmitted infections.
The ICD-10 code for anogenital (venereal) warts, A63.0, includes conditions commonly known as genital warts, anal warts, or condyloma acuminata of the vulva and other anogenital regions. This code is used to identify infections caused by human papillomavirus (HPV) presenting as warty growths in the genital and anal areas. Terms like "vulval warts," "perianal warts," and "urethral wart" all fall under this code, helping coders link these synonyms back to the official classification. On the other hand, A63.8 specifies other predominantly sexually transmitted diseases such as bacterial and anaerobic balanitis or ulcerative balanoposthitis, which are infections that affect the male genitalia and do not have separate specific codes elsewhere. Together, these codes enable precise documentation of sexually transmitted infections that are less frequently encountered or do not fit standard categories in clinical records.
Questions About This Page
How many billable codes are in the A63 range?
Of the 3 codes in this range, 2 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the A63 range classify?
The range classifies other predominantly sexually transmitted diseases, not elsewhere classified. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
