Non-Billable / Non-Specific Code
ICD-10-CM I25.81 is the diagnosis code for Atherosclerosis of other coronary vessels without angina pectoris. This code falls under the section "Ischemic heart diseases" within Chapter 9 â Diseases of the circulatory system (I00-I99). 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.
The following conditions are not included in I25.81. If the patient has both, code each condition separately:
Understanding where I25.81 sits in the ICD-10-CM classification helps ensure proper coding:
No, I25.81 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
I25.81 is the ICD-10-CM diagnosis code for "Atherosclerosis of other coronary vessels without angina pectoris". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of I25.81 is I25.8 ("Other forms of chronic ischemic heart disease"). I25.81 provides a more specific classification within this category.
I25.81 is located in Section I20-I25 â "Ischemic heart diseases" within Chapter 9 of the ICD-10-CM Tabular List.
I25.81 has 3 sub-code(s) that provide more specific detail: I25.810, I25.811, I25.812.
Use I25.81 when the patients documented diagnosis matches "Atherosclerosis of other coronary vessels without angina pectoris" 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 Atherosclerosis of other coronary vessels without angina pectoris is I25.81.
No, I25.81 is non-billable. Use a more specific sub-code for primary diagnosis billing.
I25.81 is in Chapter 9 of the ICD-10-CM Tabular List.
Yes, I25.81 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.