K31
Non-billableOther diseases of stomach and duodenum
Other diseases of stomach and duodenum
This is a header/category code. For billing purposes, use a more specific child code from the list below.
Coding Notes
Includes
Conditions included under this code
- functional disorders of stomach
Excludes 2
Conditions not included here, but the patient may have both
- •certain conditions originating in the perinatal periodP04-P96
- •certain infectious and parasitic diseasesA00-B99
- •complications of pregnancy, childbirth and the puerperiumO9A)O00
- •congenital malformations, deformations and chromosomal abnormalitiesQ00-Q99
- •endocrine, nutritional and metabolic diseasesE00-E88
- •injury, poisoning and certain other consequences of external causesS00-T88
- •neoplasmsC00-D49
- •symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classifiedR00-R94
- •hiatus herniaK44
- •diabetic gastroparesis, , , ,E08.43, E09.43, E10.43, E11.43, E13.43
- •diverticulum of duodenumK57.00-K57.13
Child Codes (11)
K31.0Acute dilatation of stomach
K31.1Adult hypertrophic pyloric stenosis
K31.2Hourglass stricture and stenosis of stomach
K31.3Pylorospasm, not elsewhere classified
K31.4Gastric diverticulum
K31.5Obstruction of duodenum
K31.6Fistula of stomach and duodenum
K31.7Polyp of stomach and duodenum
K31.8Other specified diseases of stomach and duodenum
K31.9Disease of stomach and duodenum, unspecified
K31.AGastric intestinal metaplasia
ICD-11 Equivalents(1)
ICD-11 Equivalents
View full mappingCorresponding ICD-11 codes from the WHO crosswalk mapping
Also Known As / Clinical Terms(13)
UMLS
- Disorder of function of stomachC0156084
- Disorder of function of stomach (disorder)C0156084
- Disorder of gastric functionC0156084
- Disorder of stomach functionC0156084
- Functional disorder of stomachC0156084
- Functional gastric disorderC0156084
- Functional gastric disturbanceC0156084
- Gastric function disorderC0156084
- Gastric function disorder NOSC0156084
- Stomach function disorderC0156084
- Unspecified functional disorder of stomachC0156084
- functional disorders of stomachC0156084
- Other diseases of stomach and duodenumC0156086
Frequently Asked Questions
What is the ICD-10 code for other diseases of stomach and duodenum?
The ICD-10-CM code for other diseases of stomach and duodenum is K31. The full clinical description is "Other diseases of stomach and duodenum". K31 is a non-billable header code. Use a more specific child code for billing purposes.
What does ICD-10 code K31 mean?
ICD-10-CM code K31 represents “Other diseases of stomach and duodenum”. It is classified under Chapter 11: Diseases of the Digestive System and is a non-billable header code. Use a more specific child code for billing purposes.
Is K31 a billable code?
No, K31 is a non-billable header code. You need to use one of its more specific child codes for billing. There are 11 child codes under K31.
What chapter is K31 in?
K31 is in Chapter 11: Diseases of the Digestive System (codes K00-K95).
What are the subcategories under K31?
K31 has 11 child codes, including: K31.0 (Acute dilatation of stomach), K31.1 (Adult hypertrophic pyloric stenosis), K31.2 (Hourglass stricture and stenosis of stomach), K31.3 (Pylorospasm, not elsewhere classified), and 7 more.
What are the UMLS CUIs for K31?
K31 is linked to 2 UMLS Concept Unique Identifiers: C0156084, C0156086. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does K31 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like other diseases of stomach and duodenum affect a person's functioning — body functions, activities, participation, and environmental factors. AutoICD provides ICF Core Sets for 12+ conditions and can map clinical text to ICF categories automatically. Browse the ICF directory to explore functioning codes.
What is the ICD-11 equivalent of K31?
K31 maps to the ICD-11 code: DA7Z (Diseases of the stomach or the duodenum, unspecified).
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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.