Billable / Specific Code
ICD-10-CM Q23.0 is the diagnosis code for Congenital stenosis of aortic valve. This code falls under the section "Congenital malformations of the circulatory system" within Chapter 17 — Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
The following conditions should never be coded at the same time as Q23.0. They are mutually exclusive:
Understanding where Q23.0 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, Q23.0 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
Q23.0 is the ICD-10-CM diagnosis code for "Congenital stenosis of aortic valve". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of Q23.0 is Q23 ("Congenital malformations of aortic and mitral valves"). Q23.0 provides a more specific classification within this category.
Q23.0 is located in Section Q20-Q28 — "Congenital malformations of the circulatory system" within Chapter 17 of the ICD-10-CM Tabular List.
Use Q23.0 when the patients documented diagnosis matches "Congenital stenosis of aortic valve" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Congenital stenosis of aortic valve is Q23.0.
Yes, Q23.0 can be used as a primary diagnosis code since it is billable and specific.
Q23.0 is in Chapter 17 of the ICD-10-CM Tabular List.
Type 1 Excludes for Q23.0 include: congenital stenosis of aortic valve in hypoplastic left heart syndrome (Q23.4); congenital subaortic stenosis (Q24.4); supravalvular aortic stenosis (congenital) (Q25.3).
Yes, Q23.0 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.