K65
Peritonitis
Diseases of peritoneum and retroperitoneum (K65-K68)
Chapter 11: Diseases of the digestive system (K00-K95)
22 codes in this range
K65.0
Generalized (acute) peritonitis
K65.1
Peritoneal abscess
K65.2
Spontaneous bacterial peritonitis
K65.3
Choleperitonitis
K65.4
Sclerosing mesenteritis
K65.8
Other peritonitis
K65.9
Peritonitis, unspecified
K66
Other disorders of peritoneum
K66.0
Peritoneal adhesions (postprocedural) (postinfection)
K66.1
Hemoperitoneum
K66.8
Other specified disorders of peritoneum
K66.9
Disorder of peritoneum, unspecified
K67
Disorders of peritoneum in infectious diseases classified elsewhere
K68
Disorders of retroperitoneum
K68.1
Retroperitoneal abscess
K68.11
Postprocedural retroperitoneal abscess
K68.12
Psoas muscle abscess
K68.19
Other retroperitoneal abscess
K68.2
Retroperitoneal fibrosis
K68.3
Retroperitoneal hematoma
K68.9
Other disorders of retroperitoneum