A63.8 — Other specified predominantly sexually transmitted diseases
A63.8 is a billable, specific ICD-10-CM code for other specified predominantly sexually transmitted diseases. It is valid for submission on a claim.
Excludes2 inherited from the categories above A63.8
Also inherited, and the opposite of Excludes1: these conditions are not part of A63.8, but a patient can have both, so you may code both.
Risk adjustment
A63.8 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
How A63.8 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to A63.8.
- Balanoposthitis›ulcerative(specific)
- Disease, diseased›sexually transmitted›specified organism NEC
- Disease, diseased›venereal›specified nature or type NEC
Code history
A63.8 has not changed since FY2024 — no addition, revision or deletion across the three most recent ICD-10-CM releases.
Related codes at this level
Codes that share A63. If A63.8 is not quite right, the correct code is usually one of these.
Questions about A63.8
- Is A63.8 a billable ICD-10-CM code?
- Yes. A63.8 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does A63.8 sit in the tabular list?
- Certain infectious and parasitic diseases (A00-B99), in the block Infections with a predominantly sexual mode of transmission (A50-A64).