2026
ICD-10-CM
Diagnosis
Code

K66 Other disorders of peritoneum

  • Non-billable
  • 2016–2026

K66 is a non-billable/non-specific diagnosis code from the 2026 ICD-10-CM used to classify the following condition: Other disorders of peritoneum.

Type 2 excludes

  • Ascites (R18.-)

  • Peritoneal effusion (chronic) (R18.8)

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