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K66.8

✓ Billable

Other specified disorders of peritoneum

Diseases of the digestive system (K00-K95)

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⚠️ Excludes2

inherited from K66

Rules from parent category K66: Other disorders of peritoneum

  • • ascites (R18.-)
  • • peritoneal effusion (chronic) (R18.8)

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Code Information

CodeK66.8
BillableYes
ParentK66
CategoryDiseases of the digestive system (K00-K95)
Excludes10 rule(s)
Excludes22 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)