2021 ICD-10-CM Diagnosis Code Q43.8

Other specified congenital malformations of intestine

    2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
  • Q43.8 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 Q43.8 became effective on October 1, 2020.
  • This is the American ICD-10-CM version of Q43.8 - other international versions of ICD-10 Q43.8 may differ.
Applicable To
  • Congenital blind loop syndrome
  • Congenital diverticulitis, colon
  • Congenital diverticulum, intestine
  • Dolichocolon
  • Megaloappendix
  • Megaloduodenum
  • Microcolon
  • Transposition of appendix
  • Transposition of colon
  • Transposition of intestine
The following code(s) above Q43.8 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 Q43.8:
  • 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 anal fissure
  • Congenital intestinal motility disorder
  • Congenital rectal fissure
  • Cyst, enterogenous
  • Enterogenous cyst
  • Generalized intestinal dysmotility
Clinical Information
  • A rare congenital abnormality characterized by the presence of an abnormally small colon. It is the result of intestinal underutilization during fetal development.
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.
  • Q43.8 is considered exempt from POA reporting.
ICD-10-CM Q43.8 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 Q43.8 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
Code annotations containing back-references to Q43.8:
  • Type 1 Excludes: K57
    , K90.2
    ICD-10-CM Diagnosis Code K57

    Diverticular disease of intestine

      2016 2017 2018 2019 2020 2021 Non-Billable/Non-Specific Code
    Code Also
    • if applicable peritonitis K65.-
    Type 1 Excludes
    • congenital diverticulum of intestine (Q43.8)
    • Meckel's diverticulum (Q43.0)
    Type 2 Excludes
    • diverticulum of appendix (K38.2)
    ICD-10-CM Diagnosis Code K90.2

    Blind loop syndrome, not elsewhere classified

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Blind loop syndrome NOS
    Type 1 Excludes
    • congenital blind loop syndrome (Q43.8)
    • postsurgical blind loop syndrome (K91.2)

Diagnosis Index entries containing back-references to Q43.8:
  • 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
    • appendix Q43.8
    • jejunum Q43.8
  • Appendage
    • intestine Q43.8 (epiploic)
  • Blind - see also Blindness
    • loop syndrome K90.2
      ICD-10-CM Diagnosis Code K90.2

      Blind loop syndrome, not elsewhere classified

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      Applicable To
      • Blind loop syndrome NOS
      Type 1 Excludes
      • congenital blind loop syndrome (Q43.8)
      • postsurgical blind loop syndrome (K91.2)
      • congenital Q43.8
  • Cyst (colloid) (mucous) (simple) (retention)
    • enterogenous Q43.8
  • Disease, diseased - see also Syndrome
  • Displacement, displaced
    • appendix, retrocecal Q43.8 (congenital)
  • Diverticulitis (acute) K57.92
    ICD-10-CM Diagnosis Code K57.92

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

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    • intestine K57.92
      ICD-10-CM Diagnosis Code K57.92

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

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      • congenital Q43.8
  • 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 2021 Billable/Specific Code
    Applicable To
    • Diverticular disease of intestine NOS
  • Dolichocolon Q43.8
  • Elongated, elongation (congenital) - see also Distortion
    • colon Q43.8
  • Excess, excessive, excessively
    • large
      • colon K59.39
        ICD-10-CM Diagnosis Code K59.39

        Other megacolon

          2017 - New Code 2018 2019 2020 2021 Billable/Specific Code
        Applicable To
        • Megacolon NOS
        • congenital Q43.8
  • Fissure, fissured
    • anus, anal K60.2
      ICD-10-CM Diagnosis Code K60.2

      Anal fissure, unspecified

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      • congenital Q43.8
  • Formation
    • valve
      • colon, congenital Q43.8
  • Imperfect
    • closure (congenital)
      • alimentary tract NEC Q45.8
        ICD-10-CM Diagnosis Code Q45.8

        Other specified congenital malformations of digestive system

          2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
        Applicable To
        • Absence (complete) (partial) of alimentary tract NOS
        • Duplication of digestive system
        • Malposition, congenital of digestive system
        • lower Q43.8
  • Intussusception (bowel) (colon) (enteric) (ileocecal) (ileocolic) (intestine) ( rectum) K56.1
    ICD-10-CM Diagnosis Code K56.1

    Intussusception

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Intussusception or invagination of bowel
    • Intussusception or invagination of colon
    • Intussusception or invagination of intestine
    • Intussusception or invagination of rectum
    Type 2 Excludes
    • intussusception of appendix (K38.8)
    • congenital Q43.8
  • Malformation (congenital) - see also Anomaly
    • intestine Q43.9
      ICD-10-CM Diagnosis Code Q43.9

      Congenital malformation of intestine, unspecified

        2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
      • specified type NEC Q43.8
  • Malposition
    • congenital
      • alimentary tract Q45.8
        ICD-10-CM Diagnosis Code Q45.8

        Other specified congenital malformations of digestive system

          2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
        Applicable To
        • Absence (complete) (partial) of alimentary tract NOS
        • Duplication of digestive system
        • Malposition, congenital of digestive system
        • lower Q43.8
      • digestive organ or tract NEC Q45.8
        ICD-10-CM Diagnosis Code Q45.8

        Other specified congenital malformations of digestive system

          2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
        Applicable To
        • Absence (complete) (partial) of alimentary tract NOS
        • Duplication of digestive system
        • Malposition, congenital of digestive system
        • lower Q43.8
      • intestine (large) (small) Q43.8
      • appendix Q43.8
      • cecum Q43.8
      • colon Q43.8
  • Megaloappendix Q43.8
  • Megaloduodenum Q43.8
  • Microcolon Q43.8 (congenital)
  • Microvillus inclusion disease Q43.8 (MVD) (MVID)
  • MVD Q43.8 (microvillus inclusion disease)
  • MVID Q43.8 (microvillus inclusion disease)
  • Patulous - see also Imperfect, closure (congenital)
    • alimentary tract Q45.8
      ICD-10-CM Diagnosis Code Q45.8

      Other specified congenital malformations of digestive system

        2016 2017 2018 2019 2020 2021 Billable/Specific Code POA Exempt
      Applicable To
      • Absence (complete) (partial) of alimentary tract NOS
      • Duplication of digestive system
      • Malposition, congenital of digestive system
      • lower Q43.8
  • Persistence, persistent (congenital)
    • pancreatic tissue in intestinal tract Q43.8
  • Redundant, redundancy
    • anus Q43.8 (congenital)
    • colon Q43.8 (congenital)
    • intestine Q43.8 (congenital)
    • rectum Q43.8 (congenital)
    • sigmoid Q43.8 (congenital)
  • Syndrome - see also Disease
    • blind loop K90.2
      ICD-10-CM Diagnosis Code K90.2

      Blind loop syndrome, not elsewhere classified

        2016 2017 2018 2019 2020 2021 Billable/Specific Code
      Applicable To
      • Blind loop syndrome NOS
      Type 1 Excludes
      • congenital blind loop syndrome (Q43.8)
      • postsurgical blind loop syndrome (K91.2)
      • congenital Q43.8
  • Telescoped bowel or intestine K56.1
    ICD-10-CM Diagnosis Code K56.1

    Intussusception

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Intussusception or invagination of bowel
    • Intussusception or invagination of colon
    • Intussusception or invagination of intestine
    • Intussusception or invagination of rectum
    Type 2 Excludes
    • intussusception of appendix (K38.8)
    • congenital Q43.8
  • Transposition (congenital) - see also Malposition, congenital
    • appendix Q43.8
    • colon Q43.8
    • intestine Q43.8 (large) (small)
  • Volvulus (bowel) (colon) (intestine) K56.2
    ICD-10-CM Diagnosis Code K56.2

    Volvulus

      2016 2017 2018 2019 2020 2021 Billable/Specific Code
    Applicable To
    • Strangulation of colon or intestine
    • Torsion of colon or intestine
    • Twist of colon or intestine
    Type 2 Excludes
    • volvulus of duodenum (K31.5)
    • congenital Q43.8
  • Web, webbed (congenital)
    • duodenal Q43.8

ICD-10-CM Codes Adjacent To Q43.8
Q42.9 Congenital absence, atresia and stenosis of large intestine, part unspecified
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

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