2021 ICD-10-CM Diagnosis Code Q43.9

Congenital malformation of intestine, unspecified

    2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
  • Q43.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
  • The 2021 edition of ICD-10-CM Q43.9 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of Q43.9 - other international versions of ICD-10 Q43.9 may differ.
The following code(s) above Q43.9 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 Q43.9:
  • Q00-Q99
    2021 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 anomaly of intestinal tract
  • Congenital intestinal anomaly
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.
  • Q43.9 is considered exempt from POA reporting.
ICD-10-CM Q43.9 is grouped within Diagnostic Related Group(s) (MS-DRG v38.0):
  • 393 Other digestive system diagnoses with mcc
  • 394 Other digestive system diagnoses with cc
  • 395 Other digestive system diagnoses without cc/mcc

Convert Q43.9 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
  • 2021 (effective 10/1/2020): No change

Diagnosis Index entries containing back-references to Q43.9:
  • Anomaly, anomalous (congenital) (unspecified type) Q89.9
    ICD-10-CM Diagnosis Code Q89.9

    Congenital malformation, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
    Applicable To
    • Congenital anomaly NOS
    • Congenital deformity NOS
    • digestive organ(s) Q45.9
      ICD-10-CM Diagnosis Code Q45.9

      Congenital malformation of digestive system, unspecified

        2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
      Applicable To
      • Congenital anomaly of digestive system
      • Congenital deformity of digestive system
      • lower Q43.9
    • intestine (large) (small) Q43.9
    • anus Q43.9
    • cecum Q43.9
    • colon Q43.9
    • duodenum Q43.9
    • ileocecal Q43.9 (coil) (valve)
    • ileum Q43.9
    • rectum Q43.9
    • sigmoid Q43.9 (flexure)
  • Deformity Q89.9
    ICD-10-CM Diagnosis Code Q89.9

    Congenital malformation, unspecified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
    Applicable To
    • Congenital anomaly NOS
    • Congenital deformity NOS
    • anus (acquired) K62.89
      ICD-10-CM Diagnosis Code K62.89

      Other specified diseases of anus and rectum

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      Applicable To
      • Proctitis NOS
      Use Additional
      • code for any associated fecal incontinence (R15.-)
      • congenital Q43.9
    • cecum (congenital) Q43.9
    • colon (congenital) Q43.9
    • duodenum (congenital) Q43.9
    • ileocecal (coil) (valve) (acquired) K63.89
      ICD-10-CM Diagnosis Code K63.89

      Other specified diseases of intestine

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      • congenital Q43.9
    • ileum (congenital) Q43.9
    • intestine (large) (small) (congenital) Q43.9
    • rectum (congenital) Q43.9
    • sigmoid (flexure) (congenital) Q43.9
  • Maldevelopment - see also Anomaly
    • colon Q43.9
  • Malformation (congenital) - see also Anomaly

ICD-10-CM Codes Adjacent To Q43.9
Q43 Other congenital malformations of intestine
Q43.0 Meckel's diverticulum (displaced) (hypertrophic)
Q43.1 Hirschsprung's disease
Q43.2 Other congenital functional disorders of colon
Q43.3 Congenital malformations of intestinal fixation
Q43.4 Duplication of intestine
Q43.5 Ectopic anus
Q43.6 Congenital fistula of rectum and anus
Q43.7 Persistent cloaca
Q43.8 Other specified congenital malformations of intestine
Q43.9 Congenital malformation of intestine, unspecified
Q44 Congenital malformations of gallbladder, bile ducts and liver
Q44.0 Agenesis, aplasia and hypoplasia of gallbladder
Q44.1 Other congenital malformations of gallbladder
Q44.2 Atresia of bile ducts
Q44.3 Congenital stenosis and stricture of bile ducts
Q44.4 Choledochal cyst
Q44.5 Other congenital malformations of bile ducts
Q44.6 Cystic disease of liver
Q44.7 Other congenital malformations of liver
Q45 Other congenital malformations of digestive system

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