2020 ICD-10-CM Diagnosis Code Q40.1

Congenital hiatus hernia

    2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
  • Q40.1 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 Q40.1 became effective on October 1, 2019.
  • This is the American ICD-10-CM version of Q40.1 - other international versions of ICD-10 Q40.1 may differ.
Applicable To
  • Congenital displacement of cardia through esophageal hiatus
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 Q40.1. 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.
  • congenital diaphragmatic hernia (
    ICD-10-CM Diagnosis Code Q79.0

    Congenital diaphragmatic hernia

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Type 1 Excludes
    • congenital hiatus hernia (Q40.1)
    Q79.0
    )
The following code(s) above Q40.1 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 Q40.1:
  • 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
Approximate Synonyms
  • Congenital hiatal hernia
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.
  • Q40.1 is considered exempt from POA reporting.
ICD-10-CM Q40.1 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 Q40.1 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 Q40.1:
  • Type 1 Excludes: K44
    , Q79.0
    ICD-10-CM Diagnosis Code K44

    Diaphragmatic hernia

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Includes
    • hiatus hernia (esophageal) (sliding)
    • paraesophageal hernia
    Type 1 Excludes
    • congenital diaphragmatic hernia (Q79.0)
    • congenital hiatus hernia (Q40.1)
    ICD-10-CM Diagnosis Code Q79.0

    Congenital diaphragmatic hernia

      2016 2017 2018 2019 2020 Billable/Specific Code POA Exempt
    Type 1 Excludes
    • congenital hiatus hernia (Q40.1)
  • Type 2 Excludes: Q45
    ICD-10-CM Diagnosis Code Q45

    Other congenital malformations of digestive system

      2016 2017 2018 2019 2020 Non-Billable/Non-Specific Code
    Type 2 Excludes
    • congenital diaphragmatic hernia (Q79.0)
    • congenital hiatus hernia (Q40.1)

Diagnosis Index entries containing back-references to Q40.1:
  • Displacement, displaced
    • cardia through esophageal hiatus Q40.1 (congenital)
  • Hernia, hernial (acquired) (recurrent) K46.9
    ICD-10-CM Diagnosis Code K46.9

    Unspecified abdominal hernia without obstruction or gangrene

      2016 2017 2018 2019 2020 Billable/Specific Code
    Applicable To
    • Abdominal hernia NOS
    • hiatal (esophageal) (sliding) K44.9
      ICD-10-CM Diagnosis Code K44.9

      Diaphragmatic hernia without obstruction or gangrene

        2016 2017 2018 2019 2020 Billable/Specific Code
      Applicable To
      • Diaphragmatic hernia NOS
      • congenital Q40.1
    • paraesophageal - see also Hernia, diaphragm
      • congenital Q40.1

ICD-10-CM Codes Adjacent To Q40.1
Q39.1 Atresia of esophagus with tracheo-esophageal fistula
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

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