Q23.0

Congenital stenosis of aortic valve

Billable FY2026 2025-10-01 → 2026-09-30

Exclusions 3 never code together

Q23.0code

Excludes1

congenital stenosis of aortic valve in hypoplastic left heart syndrome (Q23.4)Q23.4 Q23.4
congenital subaortic stenosis (Q24.4)Q24.4 Q24.4
supravalvular aortic stenosis (congenital) (Q25.3)Q25.3 Q25.3

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Instructional notes 2

Q23.0code

Inclusion terms

Congenital aortic atresia
Congenital aortic stenosis NOS

Index entries leading here 4

Anomaly, anomalous (congenital) (unspecified type) Q89.9
- heart Q24.9
  - valve NEC Q24.8
    - aortic
      - stenosis Q23.0
Stenosis, stenotic (cicatricial) — see also Stricture
- valve (cardiac) (heart) I38
  - congenital Q24.8
    - aortic Q23.0
- aortic (valve) I35.0
  - congenital Q23.0
Stricture — see also Stenosis
- heart — see also Disease, heart
  - valve I38
    - aortic Q23.0
- valve (cardiac) (heart) — see also Endocarditis
  - congenital
    - aortic Q23.0
Atresia, atretic
- aortic (orifice) (valve) Q23.0

Alongside this code 6 same parent — Q23

Q23.1 Congenital insufficiency of aortic valve Q23.2 Congenital mitral stenosis Q23.3 Congenital mitral insufficiency Q23.4 Hypoplastic left heart syndrome Q23.8 Other congenital malformations of aortic and mitral valves category Q23.9 Congenital malformation of aortic and mitral valves, unsp

Medications 5

14 Aortic Valve Stenosis drugs 16 Aortic Valve Disease drugs 8 Aortic Stenosis, Subvalvular drugs 2 Aortic Valve Insufficiency drugs 1 Pulmonary Valve Stenosis drugs

MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

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This code

Billable: yes
Code set: FY2026
Parent: Q23
Block: Q20-Q28
Siblings: 6

Present FY2024–FY2027.