K57.1

Diverticular disease of small intestine without perforation or abscess

FY2027Chapter 11: Diseases of the digestive system/K55–K64 Other diseases of intestines

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

K57.1 is a non-billable ICD-10-CM code header for diverticular disease of small intestine without perforation or abscess. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are K57.10 Diverticulosis of small intestine without perforation or abscess without bleeding, K57.11 Diverticulosis of small intestine without perforation or abscess with bleeding, K57.12 Diverticulitis of small intestine without perforation or abscess without bleeding and K57.13 Diverticulitis of small intestine without perforation or abscess with bleeding. Its coding notes include a Code also instruction, 3 Excludes1 entries and 9 Excludes2 entries.

Code also

Two codes may be needed to describe the condition. This note gives no sequencing order.

Inherited from K57 Diverticular disease of intestine
  • if applicable:

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code
  • diverticular disease of both small and large intestine without perforation or abscess (K57.5-)
Inherited from K57 Diverticular disease of intestine
  • congenital diverticulum of intestine (Q43.8)
  • Meckel's diverticulum (Q43.0)

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Inherited from K57 Diverticular disease of intestine
  • diverticulum of appendix (K38.2)
Also from chapter/block level (8 notes)
Inherited from Chapter 11 Diseases of the digestive system
  • 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)

More specific codes under K57.1 4