DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

Q45 Other congenital malformations of digestive system

  • Header · not billable

Q45 is not billable. The category heads 6 billable codes in FY2027: the 6 codes directly below it.

Index → code

  • Hydromphalos (since birth) → Q45.8
  • Aplasiapancreas → Q45.0
  • Agenesispancreas → Q45.0

Where it sits

  1. Chapter 17 Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders (Q00-QA1)
  2. Q38-Q45 Other congenital malformations of the digestive system (Q38-Q45)
  3. Q45 Other congenital malformations of digestive system
Billable codes
6
Subdivisions
6
CC / MCC codes
4 / 0
HCC V28 codes
0
New FY2027
0
Index entries
46

Codes in Q45

  1. Q45.0
    Agenesis, aplasia and hypoplasia of pancreas
    BillableCCExempt
    Inclusion terms 1

    Inclusion terms

    • Congenital absence of pancreas
  2. Q45.1
    Annular pancreas
    BillableCCExempt
  3. Q45.2
    Congenital pancreatic cyst
    BillableCCExempt
  4. Q45.3
    Other congenital malformations of pancreas and pancreatic duct
    BillableCCExempt
    Inclusion terms 2, Excludes1 4

    Inclusion terms

    • Accessory pancreas
    • Congenital malformation of pancreas or pancreatic duct NOS

    Excludes1

    • congenital diabetes mellitus (E10.-) E10
    • cystic fibrosis (E84.0-E84.9) E84.0 E84.9
    • fibrocystic disease of pancreas (E84.-) E84
    • neonatal diabetes mellitus (P70.2) P70.2
  5. Q45.8
    Other specified congenital malformations of digestive system
    BillableExempt
    Inclusion terms 3

    Inclusion terms

    • Absence (complete) (partial) of alimentary tract NOS
    • Duplication of digestive system
    • Malposition, congenital of digestive system
  6. Q45.9
    Congenital malformation of digestive system, unspecified
    BillableExempt
    Inclusion terms 2

    Inclusion terms

    • Congenital anomaly of digestive system
    • Congenital deformity of digestive system

CC/MCC: as a secondary diagnosis, unless the principal diagnosis is on the code’s PDX exclusion list (MS-DRG v44 Appendix C; list on the code card).

Sources of each column.

Instructions

At Q45

Excludes2

  • congenital diaphragmatic hernia (Q79.0) Q79.0
  • congenital hiatus hernia (Q40.1) Q40.1

Notes that also apply

Chapter 17 instructions (Notes 1, Excludes2 1): printed on the chapter 17 page.

Index entries

  • Hydromphalos (since birth) → Q45.8
  • Absence (of) (organ or part) (complete or partial)pancreas (congenital) → Q45.0
  • Agenesispancreas → Q45.0
  • Aplasiapancreas → Q45.0
  • Hypoplasia, hypoplasticpancreas → Q45.0
  • Annularpancreas (congenital) → Q45.1
  • Aberrant (congenital)pancreas → Q45.3
  • Accessory (congenital)pancreas → Q45.3
  • Anomaly, anomalous (congenital) (unspecified type)pancreas or pancreatic duct → Q45.3
  • Deformitypancreas (congenital) → Q45.3
  • Distortion(s) (congenital)pancreas → Q45.3
  • Duplication, duplexpancreas → Q45.3
  • Ectopic, ectopia (congenital)pancreas → Q45.3
  • Hypertrophy, hypertrophicpancreas, congenital → Q45.3
  • Absence (of) (organ or part) (complete or partial)alimentary tract (congenital) → Q45.8
  • Absence (of) (organ or part) (complete or partial)digestive organ(s) or tract, congenital → Q45.8
  • Agenesisalimentary tract (complete) (partial) NEC → Q45.8
  • Agenesisdigestive organ(s) or tract (complete) (partial) NEC → Q45.8
  • Atresia, atreticalimentary organ or tract NEC → Q45.8
  • Atresia, atreticdigestive organs NEC → Q45.8
  • Duplication, duplexalimentary tract → Q45.8
  • Duplication, duplexdigestive organs → Q45.8
  • Ectopic, ectopia (congenital)abdominal viscera → Q45.8
  • Exstrophyabdominal contents → Q45.8
  • Hypoplasia, hypoplasticalimentary tract, congenital → Q45.8
  • Hypoplasia, hypoplasticdigestive organ(s) or tract NEC → Q45.8
  • Malformation (congenital)digestive system NEC, specified type NEC → Q45.8
  • Malpositiongastrointestinal tract, congenital → Q45.8
  • Patulousalimentary tract → Q45.8
  • Stricturedigestive organs NEC, congenital → Q45.8
  • Anomaly, anomalous (congenital) (unspecified type)alimentary tract → Q45.9
  • Anomaly, anomalous (congenital) (unspecified type)digestive organ(s) or tract → Q45.9
  • Anomaly, anomalous (congenital) (unspecified type)gastrointestinal tract → Q45.9
  • Anomaly, anomalous (congenital) (unspecified type)mesentery → Q45.9
  • Deformityalimentary tract, congenital → Q45.9
  • Deformitydigestive organ NOS → Q45.9
  • Deformitygastrointestinal tract (congenital) NOS → Q45.9
  • Malformation (congenital)alimentary tract → Q45.9
  • Cyst (colloid) (mucous) (simple) (retention)pancreas, pancreatic (hemorrhagic) (true)congenital → Q45.2
  • Malpositioncongenitalpancreas → Q45.3

6 more, longer entries are not listed; the search box finds them by word.

NCHS Alphabetic Index. Index first, then the Tabular List.

Hierarchy