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K29Non-billableSave

K29 - Gastritis and duodenitis

ICD-10-CM Chapter 11: Diseases of the digestive system · K20-K31 Diseases of esophagus, stomach and duodenum (K20-K31) · Top-level category · FY2027

Coding Guidance

K29 is a non-billable heading. Report one of the 9 more specific codes below.

Includes, Excludes and Coding Notes

Excludes 1 — Not Coded HereFrom K29

Mutually exclusive: these conditions are never reported together with this code.

  • eosinophilic gastritis or gastroenteritis (K52.81)
  • Zollinger-Ellison syndrome (E16.4)
Excludes 2 — Not Included HereFrom K20-K31 Diseases of esophagus, stomach and duodenum (K20-K31)

Not part of this code; report both codes when the patient has both conditions.

  • hiatus hernia (K44.-)
Excludes 2 — Not Included HereFrom Chapter K00-K95

Not part of this code; report both codes when the patient has both conditions.

  • 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 (9)

K29.0Acute gastritis→K29.2Alcoholic gastritis→K29.3Chronic superficial gastritis→K29.4Chronic atrophic gastritis→K29.5Unspecified chronic gastritis→K29.6Other gastritis→K29.7Gastritis, unspecified→K29.8Duodenitis→K29.9Gastroduodenitis, unspecified→

Related condition guides

Documentation requirements, coding pitfalls and FAQs for conditions coded with K29.