A54.85 — Gonococcal peritonitis
A54.85 is a billable, specific ICD-10-CM code for gonococcal peritonitis. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- gonococcal pelviperitonitis (A54.24)
Other codes that can never be billed with A54.85
These codes carry an Excludes1 note pointing at A54.85. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading A54.85 alone.
Risk adjustment
A54.85 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 78 Intestinal Obstruction/Perforation0.326 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
How A54.85 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 A54.85.
- Peritonitis›gonococcal
- Fitzhugh-Curtis syndrome›due to›Neisseria gonorrhea(gonococcal peritonitis)
- Syndrome›Fitzhugh-Curtis›due to›Neisseria gonorrhea(gonococcal peritonitis)
Related codes at this level
Codes that share A54.8. If A54.85 is not quite right, the correct code is usually one of these.
Questions about A54.85
- Is A54.85 a billable ICD-10-CM code?
- Yes. A54.85 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does A54.85 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).
- What cannot be coded together with A54.85?
- A54.85 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.