ICD-10-CM I25.42 is the diagnosis code for Coronary artery dissection. This code falls under the section "Ischemic heart diseases" within Chapter 9 — Diseases of the circulatory system (I00-I99). 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.
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 I25.42 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, I25.42 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
I25.42 is the ICD-10-CM diagnosis code for "Coronary artery dissection". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of I25.42 is I25.4 ("Coronary artery aneurysm and dissection"). I25.42 provides a more specific classification within this category.
I25.42 is located in Section I20-I25 — "Ischemic heart diseases" within Chapter 9 of the ICD-10-CM Tabular List.
Use I25.42 when the patients documented diagnosis matches "Coronary artery dissection" 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 Coronary artery dissection is I25.42.
Yes, I25.42 can be used as a primary diagnosis code since it is billable and specific.
I25.42 is in Chapter 9 of the ICD-10-CM Tabular List.
Yes, I25.42 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.