2020 ICD-10-CM Diagnosis Code Q40.2

Other specified congenital malformations of stomach

    2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
  • Q40.2 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2020 edition of ICD-10-CM Q40.2 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of Q40.2 - other international versions of ICD-10 Q40.2 may differ.
Applicable To
  • Congenital displacement of stomach
  • Congenital diverticulum of stomach
  • Congenital hourglass stomach
  • Congenital duplication of stomach
  • Megalogastria
  • Microgastria
The following code(s) above Q40.2 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 Q40.2:
  • Q00-Q99
    2020 ICD-10-CM Range Q00-Q99

    Congenital malformations, deformations and chromosomal abnormalities

    Note
    • Codes from this chapter are not for use on maternal records
    Type 2 Excludes
    • inborn errors of metabolism (E70-E88)
    Congenital malformations, deformations and chromosomal abnormalities
Present On Admission
POA Help
"Present On Admission" is defined as present at the time the order for inpatient admission occurs — conditions that develop during an outpatient encounter, including emergency department, observation, or outpatient surgery, are considered POA.
  • Q40.2 is considered exempt from POA reporting.
ICD-10-CM Q40.2 is grouped within Diagnostic Related Group(s) (MS-DRG v37.0):
  • 393 Other digestive system diagnoses with mcc
  • 394 Other digestive system diagnoses with cc
  • 395 Other digestive system diagnoses without cc/mcc

Convert Q40.2 to ICD-9-CM

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 Q40.2:
  • Type 1 Excludes: K31.2
    , K31.4
    ICD-10-CM Diagnosis Code K31.2

    Hourglass stricture and stenosis of stomach

      2016 2017 2018 2019 2020 Billable/Specific Code
    Type 1 Excludes
    • congenital hourglass stomach (Q40.2)
    • hourglass contraction of stomach (K31.89)
    ICD-10-CM Diagnosis Code K31.4

    Gastric diverticulum

      2016 2017 2018 2019 2020 Billable/Specific Code
    Type 1 Excludes
    • congenital diverticulum of stomach (Q40.2)

Diagnosis Index entries containing back-references to Q40.2:
  • Absence (of) (organ or part) (complete or partial)
    • stomach (acquired) (partial) Z90.3
      ICD-10-CM Diagnosis Code Z90.3

      Acquired absence of stomach [part of]

        2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
      • congenital Q40.2
  • Agenesis
    • gastric Q40.2
    • stomach Q40.2
  • Anomaly, anomalous (congenital) (unspecified type) Q89.9
    ICD-10-CM Diagnosis Code Q89.9

    Congenital malformation, unspecified

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Applicable To
    • Congenital anomaly NOS
    • Congenital deformity NOS
    • cascade stomach Q40.2
    • hourglass stomach Q40.2
  • Contraction(s)
    • hourglass
      • stomach K31.89
        ICD-10-CM Diagnosis Code K31.89

        Other diseases of stomach and duodenum

          2016 2017 2018 2019 2020 Billable/Specific Code
        • congenital Q40.2
    • stomach K31.89
      ICD-10-CM Diagnosis Code K31.89

      Other diseases of stomach and duodenum

        2016 2017 2018 2019 2020 Billable/Specific Code
      • hourglass K31.89
        ICD-10-CM Diagnosis Code K31.89

        Other diseases of stomach and duodenum

          2016 2017 2018 2019 2020 Billable/Specific Code
        • congenital Q40.2
  • Displacement, displaced
    • gastric mucosa Q40.2 (congenital)
    • stomach, congenital Q40.2
  • Diverticulum, diverticula (multiple) K57.90
    ICD-10-CM Diagnosis Code K57.90

    Diverticulosis of intestine, part unspecified, without perforation or abscess without bleeding

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Diverticular disease of intestine NOS
    • stomach (acquired) K31.4
      ICD-10-CM Diagnosis Code K31.4

      Gastric diverticulum

        2016 2017 2018 2019 2020 Billable/Specific Code
      Type 1 Excludes
      • congenital diverticulum of stomach (Q40.2)
      • congenital Q40.2
  • Duplication, duplex - see also Accessory
    • stomach Q40.2
  • Ectopic, ectopia (congenital)
    • gastric mucosa Q40.2
  • Fistula (cutaneous) L98.8
    ICD-10-CM Diagnosis Code L98.8

    Other specified disorders of the skin and subcutaneous tissue

      2016 2017 2018 2019 2020 Billable/Specific Code
    • gastrocolic K31.6
      ICD-10-CM Diagnosis Code K31.6

      Fistula of stomach and duodenum

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Gastrocolic fistula
      • Gastrojejunocolic fistula
      • congenital Q40.2
  • Hourglass (contracture) - see also Contraction, hourglass
    • stomach K31.89
      ICD-10-CM Diagnosis Code K31.89

      Other diseases of stomach and duodenum

        2016 2017 2018 2019 2020 Billable/Specific Code
      • congenital Q40.2
  • Malformation (congenital) - see also Anomaly
    • stomach Q40.3
      ICD-10-CM Diagnosis Code Q40.3

      Congenital malformation of stomach, unspecified

        2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
      • specified type NEC Q40.2
  • Malposition
    • congenital
      • stomach Q40.2
    • stomach K31.89
      ICD-10-CM Diagnosis Code K31.89

      Other diseases of stomach and duodenum

        2016 2017 2018 2019 2020 Billable/Specific Code
      • congenital Q40.2
  • Megalogastria (acquired) K31.89
    ICD-10-CM Diagnosis Code K31.89

    Other diseases of stomach and duodenum

      2016 2017 2018 2019 2020 Billable/Specific Code
    • congenital Q40.2
  • Microgastria Q40.2 (congenital)
  • Obstruction, obstructed, obstructive
    • stomach NEC K31.89
      ICD-10-CM Diagnosis Code K31.89

      Other diseases of stomach and duodenum

        2016 2017 2018 2019 2020 Billable/Specific Code
      • congenital Q40.2
  • Stricture - see also Stenosis
    • stomach K31.89
      ICD-10-CM Diagnosis Code K31.89

      Other diseases of stomach and duodenum

        2016 2017 2018 2019 2020 Billable/Specific Code
      • congenital Q40.2
  • Transposition (congenital) - see also Malposition, congenital

ICD-10-CM Codes Adjacent To Q40.2
Q39.2 Congenital tracheo-esophageal fistula without atresia
Q39.3 Congenital stenosis and stricture of esophagus
Q39.4 Esophageal web
Q39.5 Congenital dilatation of esophagus
Q39.6 Congenital diverticulum of esophagus
Q39.8 Other congenital malformations of esophagus
Q39.9 Congenital malformation of esophagus, unspecified
Q40 Other congenital malformations of upper alimentary tract
Q40.0 Congenital hypertrophic pyloric stenosis
Q40.1 Congenital hiatus hernia
Q40.2 Other specified congenital malformations of stomach
Q40.3 Congenital malformation of stomach, unspecified
Q40.8 Other specified congenital malformations of upper alimentary tract
Q40.9 Congenital malformation of upper alimentary tract, unspecified
Q41 Congenital absence, atresia and stenosis of small intestine
Q41.0 Congenital absence, atresia and stenosis of duodenum
Q41.1 Congenital absence, atresia and stenosis of jejunum
Q41.2 Congenital absence, atresia and stenosis of ileum
Q41.8 Congenital absence, atresia and stenosis of other specified parts of small intestine
Q41.9 Congenital absence, atresia and stenosis of small intestine, part unspecified
Q42 Congenital absence, atresia and stenosis of large intestine

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