A74.81
BillableChlamydial peritonitis
This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
This is an infection of the peritoneum (the thin membrane lining the inside of the abdomen) caused by chlamydia bacteria. It causes inflammation and abdominal pain and requires antibiotic treatment.
Coding Tips
- •Verify that chlamydia is confirmed as the causative organism through culture, nucleic acid amplification test (NAAT), or other diagnostic documentation before coding A74.81
- •Do not use this code for peritonitis of other bacterial origins; ensure chlamydial etiology is explicitly documented by the provider
Code Hierarchy
└A74Other diseases caused by chlamydiae└A74.8Other chlamydial diseases└A74.81Chlamydial peritonitis
└A74.81Chlamydial peritonitis