2020 ICD-10-CM Diagnosis Code K29

Gastritis and duodenitis

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • K29 should not be used for reimbursement purposes as there are multiple codes below it that contain a greater level of detail.
  • The 2020 edition of ICD-10-CM K29 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of K29 - other international versions of ICD-10 K29 may differ.
Type 1 Excludes
Type 1 Excludes Help
A type 1 excludes note is a pure excludes. It means "not coded here". A type 1 excludes note indicates that the code excluded should never be used at the same time as K29. A type 1 excludes note is for used for when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
  • eosinophilic gastritis or gastroenteritis (
    ICD-10-CM Diagnosis Code K52.81

    Eosinophilic gastritis or gastroenteritis

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Eosinophilic enteritis
    Type 2 Excludes
    • eosinophilic esophagitis (K20.0)
    K52.81
    )
  • Zollinger-Ellison syndrome (
    ICD-10-CM Diagnosis Code E16.4

    Increased secretion of gastrin

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Hypergastrinemia
    • Hyperplasia of pancreatic endocrine cells with gastrin excess
    • Zollinger-Ellison syndrome
    E16.4
    )
The following code(s) above K29 contain annotation back-references
Annotation Back-References
In this context, annotation back-references refer to codes that contain:
  • Applicable To annotations, or
  • Code Also annotations, or
  • Code First annotations, or
  • Excludes1 annotations, or
  • Excludes2 annotations, or
  • Includes annotations, or
  • Note annotations, or
  • Use Additional annotations
that may be applicable to K29:
  • K00-K95
    2020 ICD-10-CM Range K00-K95

    Diseases of the digestive system

    Type 2 Excludes
    • 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)
    Diseases of the digestive system
  • K20-K31
    2020 ICD-10-CM Range K20-K31

    Diseases of esophagus, stomach and duodenum

    Type 2 Excludes
    Diseases of esophagus, stomach and duodenum
Code History
  • 2016 (effective 10/1/2015): New code (first year of non-draft ICD-10-CM)
  • 2017 (effective 10/1/2016): No change
  • 2018 (effective 10/1/2017): No change
  • 2019 (effective 10/1/2018): No change
  • 2020 (effective 10/1/2019): No change
Code annotations containing back-references to K29:
  • Type 1 Excludes: K92.2
    ICD-10-CM Diagnosis Code K92.2

    Gastrointestinal hemorrhage, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Gastric hemorrhage NOS
    • Intestinal hemorrhage NOS
    Type 1 Excludes
    • acute hemorrhagic gastritis (K29.01)
    • hemorrhage of anus and rectum (K62.5)
    • angiodysplasia of stomach with hemorrhage (K31.811)
    • diverticular disease with hemorrhage (K57.-)
    • gastritis and duodenitis with hemorrhage (K29.-)
    • peptic ulcer with hemorrhage (K25-K28)
ICD-10-CM Codes Adjacent To K29
K28 Gastrojejunal ulcer
K28.0 Acute gastrojejunal ulcer with hemorrhage
K28.1 Acute gastrojejunal ulcer with perforation
K28.2 Acute gastrojejunal ulcer with both hemorrhage and perforation
K28.3 Acute gastrojejunal ulcer without hemorrhage or perforation
K28.4 Chronic or unspecified gastrojejunal ulcer with hemorrhage
K28.5 Chronic or unspecified gastrojejunal ulcer with perforation
K28.6 Chronic or unspecified gastrojejunal ulcer with both hemorrhage and perforation
K28.7 Chronic gastrojejunal ulcer without hemorrhage or perforation
K28.9 Gastrojejunal ulcer, unspecified as acute or chronic, without hemorrhage or perforation
K29 Gastritis and duodenitis
K29.0 Acute gastritis
K29.00 …… without bleeding
K29.01 …… with bleeding
K29.2 Alcoholic gastritis
K29.20 …… without bleeding
K29.21 …… with bleeding
K29.3 Chronic superficial gastritis
K29.30 …… without bleeding
K29.31 …… with bleeding
K29.4 Chronic atrophic gastritis

Reimbursement claims with a date of service on or after October 1, 2015 require the use of ICD-10-CM codes.