K55-K64

Non-Billable
ChapterK00–K95
Rankblock
Official Description

Other diseases of intestines (K55-K64)

Metadata & Insights
  • •2026 ICD-10-CM Edition - Effective October 1, 2025.
  • •Non-billable category (requires more specific sub-code).
  • •Chapter 11: Diseases of the Digestive System (K00-K95).

CH11 Parent Instructions

Excludes2(Not included here)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Clinical Hierarchy

CH11Diseases of the digestive system (K00-K95)
K55-K64Other diseases of intestines (K55-K64)
K55Vascular disorders of intestine
K56Paralytic ileus and intestinal obstruction without hernia
K57Diverticular disease of intestine
K58Irritable bowel syndrome
K59Other functional intestinal disorders
K60Fissure and fistula of anal and rectal regions
K61Abscess of anal and rectal regions
K62Other diseases of anus and rectum
K63Other diseases of intestine
K64Hemorrhoids and perianal venous thrombosis

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to K55-K64:

chapterCH11
Diseases of the digestive system (K00-K95)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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