Disorders of peritoneum in infectious diseases classified elsewhere (K67)

K67 covers disorders of the peritoneum caused by infections identified elsewhere in the body. These conditions affect the membrane lining the abdominal cavity and typically occur as complications of infectious diseases.

The ICD-10 code for disorders of peritoneum in infectious diseases classified elsewhere (K67) is used when infection spreads to the peritoneal lining, leading to inflammation such as peritonitis or intra-abdominal abscesses. This code is important for cases where the primary infection is documented under another classification but has caused secondary issues involving the peritoneum. It helps healthcare providers and coders accurately capture the presence of serious infectious complications within the abdominal cavity that require specific management and monitoring.

Instructional Notations

Code First

Certain conditions have both an underlying etiology and multiple body system manifestations due to the underlying etiology. For such conditions, the ICD-10-CM has a coding convention that requires the underlying condition be sequenced first followed by the manifestation. Wherever such a combination exists, there is a "use additional code" note at the etiology code, and a "code first" note at the manifestation code. These instructional notes indicate the proper sequencing order of the codes, etiology followed by manifestation.

  • underlying disease, such as:
  • congenital syphilis A50.0
  • helminthiasis B65.0 B83.9

Type 1 Excludes

A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.

  • peritonitis in chlamydia A74.81
  • peritonitis in diphtheria A36.89
  • peritonitis in gonococcal A54.85
  • peritonitis in syphilis late A52.74
  • peritonitis in tuberculosis A18.31