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K52.9

Noninfective gastroenteritis and colitis, unspecified

Billable FY2026 2025-10-01 → 2026-09-30
This is the unspecified option. 5 more specific codes sit alongside it. Worth checking whether the documentation supports one of them.
Exclusions 15 never code together
K52.9code
Excludes1
K50-K52block
Excludes1
  • irritable bowel syndrome (K58.-)K58.-
  • megacolon (K59.3-)K59.3-
K00-K95chapter
Excludes2
  • certain conditions originating in the perinatal period (P04-P96)P04-P96
  • certain infectious and parasitic diseases (A00-B99)A00-B99
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)O00-O9A
  • congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)Q00-Q99
  • endocrine, nutritional and metabolic diseases (E00-E88)E00-E88
  • injury, poisoning and certain other consequences of external causes (S00-T88)S00-T88
  • neoplasms (C00-D49)C00-D49
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)R00-R94

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 7
K52.9code
Inclusion terms
  • Colitis NOS
  • Enteritis NOS
  • Gastroenteritis NOS
  • Ileitis NOS
  • Jejunitis NOS
  • Sigmoiditis NOS
K50-K52block
Includes
  • noninfective inflammatory bowel disease
Index entries leading here 11
  • Cecitis K52.9
  • Enteritis (acute) (diarrheal) (hemorrhagic) (noninfective) K52.9
    • chronic (noninfectious) K52.9
    • noninfectious K52.9
  • Diarrhea, diarrheal (disease) (infantile) (inflammatory) R19.7
    • chronic (noninfectious) K52.9
    • noninfectious K52.9
  • Colitis (acute) (catarrhal) (chronic) (noninfective) (hemorrhagic) K52.9
  • Enterocolitis K52.9
  • Gastroenteritis (acute) (chronic) (noninfectious) K52.9
  • Gastroenteropathy K52.9
  • Gastrojejunitis K52.9
  • Ileitis (chronic) (noninfectious) K52.9
  • Ileocolitis K52.9
  • Sigmoiditis K52.9
Alongside this code 5 same parent — K52
Additional references
AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable
yes
Code set
FY2026
Parent
K52
Block
K50-K52
Siblings
5

Present FY2024–FY2027.