2021 ICD-10-CM Diagnosis Sections -

Peritonitis:

• 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

2021 ICD-10-CM Diagnosis Sections -

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

2021 ICD-10-CM Diagnosis Sections -

Disorders of peritoneum in infectious diseases classified elsewhere:

2021 ICD-10-CM Diagnosis Sections -

Disorders of retroperitoneum:

• K68.1 Retroperitoneal abscess
• K68.9 Other disorders of retroperitoneum