Non-Billable / Non-Specific Code
ICD-10-CM Q26 is the diagnosis code for Congenital malformations of great veins. 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 non-billable/non-specific ICD-10-CM code that should not be used for reimbursement. A more specific sub-code is required for billing. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Always refer to the official ICD-10-CM Tabular List for complete coding guidelines. Ensure documentation supports the specificity of the code selected. When in doubt, consult a certified medical coder or the latest CMS guidelines.
Understanding where Q26 sits in the ICD-10-CM classification helps ensure proper coding:
No, Q26 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
Q26 is the ICD-10-CM diagnosis code for "Congenital malformations of great veins". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
Q26 is located in Section Q20-Q28 — "Congenital malformations of the circulatory system" within Chapter 17 of the ICD-10-CM Tabular List.
Q26 has 9 sub-code(s) that provide more specific detail: Q26.0, Q26.1, Q26.2, Q26.3, Q26.4 and more.
Use Q26 when the patients documented diagnosis matches "Congenital malformations of great veins" 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 malformations of great veins is Q26.
No, Q26 is non-billable. Use a more specific sub-code for primary diagnosis billing.
Q26 is in Chapter 17 of the ICD-10-CM Tabular List.
Yes, Q26 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.