DxCodebookFY2027 · Oct 1, 2026 – Sep 30, 2027

Category · FY2027

Q40 Other congenital malformations of upper alimentary tract

  • Header · not billable

Q40 is not billable. The category heads 6 billable codes in FY2027: the 6 codes directly below it.

Index → code

  • Microgastria (congenital) → Q40.2
  • Agenesisgastric → Q40.2
  • Agenesisstomach → Q40.2

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. Q40 Other congenital malformations of upper alimentary tract
Billable codes
6
Subdivisions
6
CC / MCC codes
0 / 0
HCC V28 codes
1
New FY2027
0
Index entries
56

Codes in Q40

  1. Q40.0
    Congenital hypertrophic pyloric stenosis
    Billable78Exempt
    Inclusion terms 5

    Inclusion terms

    • Congenital constriction
    • Congenital hypertrophy
    • Congenital spasm
    • Congenital stenosis
    • Congenital stricture
  2. Q40.1
    Congenital hiatus hernia
    BillableExempt
    Inclusion terms 1, Excludes1 1

    Inclusion terms

    • Congenital displacement of cardia through esophageal hiatus

    Excludes1

    • congenital diaphragmatic hernia (Q79.0) Q79.0
  3. Q40.2
    Other specified congenital malformations of stomach
    BillableExempt
    Inclusion terms 6

    Inclusion terms

    • Congenital displacement of stomach
    • Congenital diverticulum of stomach
    • Congenital hourglass stomach
    • Congenital duplication of stomach
    • Megalogastria
    • Microgastria
  4. Q40.3
    Congenital malformation of stomach, unspecified
    BillableExempt
  5. Q40.8
    Other specified congenital malformations of upper alimentary tract
    BillableExempt
  6. Q40.9
    Congenital malformation of upper alimentary tract, unspecified
    BillableExempt
    Inclusion terms 2

    Inclusion terms

    • Congenital anomaly of upper alimentary tract
    • Congenital deformity of upper alimentary tract

Sources of each column.

Instructions

Notes that also apply

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

Index entries

  • Microgastria (congenital) → Q40.2
  • Achalasia (cardia) (esophagus)pylorus → Q40.0
  • Pylorospasm (reflex) NECcongenital → Q40.0
  • Pylorospasm (reflex) NECnewborn → Q40.0
  • Displacement, displacedcardia through esophageal hiatus (congenital) → Q40.1
  • Agenesisgastric → Q40.2
  • Agenesisstomach → Q40.2
  • Anomaly, anomalous (congenital) (unspecified type)cascade stomach → Q40.2
  • Anomaly, anomalous (congenital) (unspecified type)hourglass stomach → Q40.2
  • Displacement, displacedgastric mucosa (congenital) → Q40.2
  • Displacement, displacedstomach, congenital → Q40.2
  • Duplication, duplexstomach → Q40.2
  • Ectopic, ectopia (congenital)gastric mucosa → Q40.2
  • Megalogastria (acquired)congenital → Q40.2
  • Transposition (congenital)stomach → Q40.2
  • Anomaly, anomalous (congenital) (unspecified type)pylorus → Q40.3
  • Anomaly, anomalous (congenital) (unspecified type)stomach → Q40.3
  • Deformitypylorus (congenital) → Q40.3
  • Deformitystomach (congenital) → Q40.3
  • Malformation (congenital)stomach → Q40.3
  • Constrictionpylorus (adult hypertrophic)congenital → Q40.0
  • Constrictionpylorus (adult hypertrophic)newborn → Q40.0
  • Hypertrophy, hypertrophicpylorus (adult) (muscle) (sphincter)congenital → Q40.0
  • Obstruction, obstructed, obstructivepyloruscongenital → Q40.0
  • Spasm(s), spastic, spasticitypylorus NECcongenital → Q40.0
  • Stenosis, stenotic (cicatricial)pylorus (hypertrophic) (acquired)congenital → Q40.0
  • Stricturepylorus (hypertrophic)congenital → Q40.0
  • Hernia, hernial (acquired) (recurrent)hiatal (esophageal) (sliding)congenital → Q40.1
  • Hernia, hernial (acquired) (recurrent)paraesophagealcongenital → Q40.1
  • Absence (of) (organ or part) (complete or partial)stomach (acquired) (partial)congenital → Q40.2
  • Diverticulum, diverticula (multiple)stomach (acquired)congenital → Q40.2
  • Fistula (cutaneous)gastrocoliccongenital → Q40.2
  • Hourglass (contracture)stomachcongenital → Q40.2
  • Malformation (congenital)stomachspecified type NEC → Q40.2
  • Malpositioncongenitalstomach → Q40.2
  • Malpositionstomachcongenital → Q40.2
  • Obstruction, obstructed, obstructivestomach NECcongenital → Q40.2
  • Stricturestomachcongenital → Q40.2
  • Absence (of) (organ or part) (complete or partial)alimentary tract (congenital)upper → Q40.8
  • Absence (of) (organ or part) (complete or partial)digestive organ(s) or tract, congenitalupper → Q40.8

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

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

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