2020 ICD-10-CM Diagnosis Code K31

Other diseases of stomach and duodenum

    2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
  • K31 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 K31 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of K31 - other international versions of ICD-10 K31 may differ.
Type 2 Excludes
Type 2 Excludes Help
A type 2 excludes note represents "not included here". A type 2 excludes note indicates that the condition excluded is not part of the condition it is excluded from but a patient may have both conditions at the same time. When a type 2 excludes note appears under a code it is acceptable to use both the code (K31) and the excluded code together.
  • diabetic gastroparesis (
    ICD-10-CM Diagnosis Code E08.43

    Diabetes mellitus due to underlying condition with diabetic autonomic (poly)neuropathy

      2016 2017 2018 2019 2020 Billable/Specific Code Manifestation Code
    Applicable To
    • Diabetes mellitus due to underlying condition with diabetic gastroparesis
    E08.43
    ,
    ICD-10-CM Diagnosis Code E09.43

    Drug or chemical induced diabetes mellitus with neurological complications with diabetic autonomic (poly)neuropathy

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Drug or chemical induced diabetes mellitus with diabetic gastroparesis
    E09.43
    ,
    ICD-10-CM Diagnosis Code E10.43

    Type 1 diabetes mellitus with diabetic autonomic (poly)neuropathy

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Type 1 diabetes mellitus with diabetic gastroparesis
    E10.43
    ,
    ICD-10-CM Diagnosis Code E11.43

    Type 2 diabetes mellitus with diabetic autonomic (poly)neuropathy

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Type 2 diabetes mellitus with diabetic gastroparesis
    E11.43
    ,
    ICD-10-CM Diagnosis Code E13.43

    Other specified diabetes mellitus with diabetic autonomic (poly)neuropathy

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Other specified diabetes mellitus with diabetic gastroparesis
    E13.43
    )
  • diverticulum of duodenum (
    ICD-10-CM Diagnosis Code K57.00

    Diverticulitis of small intestine with perforation and abscess without bleeding

      2016 2017 2018 2019 2020 Billable/Specific Code
    K57.00-
    ICD-10-CM Diagnosis Code K57.13

    Diverticulitis of small intestine without perforation or abscess with bleeding

      2016 2017 2018 2019 2020 Billable/Specific Code
    K57.13
    )
Includes
Includes Help
"Includes" further defines, or give examples of, the content of the code or category.
  • functional disorders of stomach
The following code(s) above K31 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 K31:
  • 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 K31:
  • Type 2 Excludes: K59
    ICD-10-CM Diagnosis Code K59

    Other functional intestinal disorders

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 1 Excludes
    • change in bowel habit NOS (R19.4)
    • intestinal malabsorption (K90.-)
    • psychogenic intestinal disorders (F45.8)
    Type 2 Excludes
    • functional disorders of stomach (K31.-)
ICD-10-CM Codes Adjacent To K31
K29.7 Gastritis, unspecified
K29.70 …… without bleeding
K29.71 …… with bleeding
K29.8 Duodenitis
K29.80 …… without bleeding
K29.81 …… with bleeding
K29.9 Gastroduodenitis, unspecified
K29.90 …… without bleeding
K29.91 …… with bleeding
K30 Functional dyspepsia
K31 Other diseases of stomach and duodenum
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
K31.4 Gastric diverticulum
K31.5 Obstruction of duodenum
K31.6 Fistula of stomach and duodenum
K31.7 Polyp of stomach and duodenum
K31.8 Other specified diseases of stomach and duodenum
K31.81 Angiodysplasia of stomach and duodenum

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