K31.6
BillableFistula of stomach and duodenum
Fistula of stomach and duodenum
Coding Notes
Inclusion Terms
Alternative clinical terms for this condition
- Gastrocolic fistula
- Gastrojejunocolic fistula
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
Code Also
A second code may be required; sequencing depends on circumstances
Related Codes(10)
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
K31.7Polyp 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(98)
SNOMED CT
- Enteroenteric fistula3590007
- DF - Duodenal fistula7780000
- Duodenal fistula7780000
- Aortoduodenal fistula9058002
- Duodenoaortic fistula9058002
- Duodenocolic fistula16010007
- Gastroduodenal fistula17206008
- Gastrojejunocolic fistula25335003
- Low-output external gastrointestinal fistula26289005
- Gastrocolic fistula28756003
- Internal gastrointestinal fistula32161008
- Gastroenteric fistula37831005
- Gastrointestinal fistula37831005
- Duodenorenal fistula45743004
- Pyeloduodenal fistula45743004
- Aortoenteric fistula59047005
- Aortointestinal fistula59047005
- Internal duodenal fistula79615003
- External gastrointestinal fistula80641008
- Duodenocutaneous fistula85968009
- External duodenal fistula85968009
- High-output external gastrointestinal fistula111342009
- Coloenteric fistula111356006
- Enterocolic fistula111356006
- Enterocolonic fistula111356006
- Aortic fistula128551005
- External gastric fistula196767003
- Gastrocutaneous fistula196767003
- Enteric cutaneous fistula197247001
- Enterocutaneous fistula197247001
- Fistula of stomach235671002
- GF - Gastric fistula235671002
- Gastric fistula235671002
- Internal gastric fistula235672009
- Gastrojejunal fistula235673004
- Duodenoenteric fistula235696004
- External small bowel fistula235738006
- Duodenal stump fistula277540008
- Jejunal fistula304371002
- Esophago-enteric fistula405567008
- Esophagoenteric fistula405567008
- Oesophagoenteric fistula405567008
- Acquired gastric fistula717858004
- Gastroduodenal disorder3411000119107
UMLS
Clinical Terms
- Gastrojejunal fistula
- Pyeloduodenal fistula
- External gastrointestinal fistula
- Gastrojejunocolic fistula
- Enterocutaneous fistula
- Duodenocutaneous fistula
- Duodenorenal fistula
- Enteric cutaneous fistula
- Gastrocolic fistula
- GF - Gastric fistula
- Gastrointestinal fistula
- Gastrocolic fistula (disorder)
- Coloenteric fistula
- Gastroduodenal fistula
- Duodenocolic fistula
- Acquired gastric fistula
- DF - Duodenal fistula
- Internal duodenal fistula
- Internal gastric fistula
- Gastroenteric fistula
- Internal gastrointestinal fistula
- Jejunal fistula
- Duodenoaortic fistula
- Low-output external gastrointestinal fistula
- Enteroenteric fistula
- Gastrojejunocolic fistula (disorder)
- Oesophagoenteric fistula
- Aortoduodenal fistula
- External gastric fistula
- High-output external gastrointestinal fistula
- Duodenal stump fistula
- Duodenoenteric fistula
- Aortoenteric fistula
- External duodenal fistula
- Enterocolonic fistula
- Enterocolic fistula
- Gastroduodenal disorder
- Aortointestinal fistula
- Gastric fistula
- Esophagoenteric fistula
- Fistula of stomach
- External small bowel fistula
- Gastrocutaneous fistula
- Esophago-enteric fistula
- Gastroduodenal fistula (disorder)
- Duodenal fistula
- Aortic fistula
Frequently Asked Questions
What is the ICD-10 code for fistula of stomach and duodenum?
The ICD-10-CM code for fistula of stomach and duodenum is K31.6. The full clinical description is "Fistula of stomach and duodenum". K31.6 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code K31.6 mean?
ICD-10-CM code K31.6 represents “Fistula of stomach and duodenum”. It is classified under Chapter 11: Diseases of the Digestive System and is a billable/specific code that can be used on a claim.
Is K31.6 a billable code?
Yes, K31.6 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is K31.6 in?
K31.6 is in Chapter 11: Diseases of the Digestive System (codes K00-K95).
What SNOMED CT codes does K31.6 map to?
K31.6 maps to 30 SNOMED CT concepts: 717858004, 128551005, 9058002, 59047005, 111356006, and 25 more. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for K31.6?
K31.6 is linked to 3 UMLS Concept Unique Identifiers: C0267180, C0267179, C0267181. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
How does K31.6 relate to ICF functioning codes?
ICF (International Classification of Functioning, Disability and Health) codes describe how conditions like fistula 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 K31.6?
K31.6 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.