Diseases of peritoneum and retroperitoneum

K65-K68

This section covers 22 ICD-10-CM codes (K65-K68) for diseases of peritoneum and retroperitoneum, including peritonitis, other disorders of peritoneum, and disorders of peritoneum in infectious diseases classified elsewhere. 18 of these are billable codes usable on a claim; the rest are non-billable header categories that require a more specific child code.