Non-Billable / Non-Specific Code
ICD-10-CM I05 is the diagnosis code for Rheumatic mitral valve diseases. This code falls under the section "Chronic rheumatic heart diseases" within Chapter 9 — 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 should never be coded at the same time as I05. They are mutually exclusive:
Understanding where I05 sits in the ICD-10-CM classification helps ensure proper coding:
No, I05 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
I05 is the ICD-10-CM diagnosis code for "Rheumatic mitral valve diseases". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
I05 is located in Section I05-I09 — "Chronic rheumatic heart diseases" within Chapter 9 of the ICD-10-CM Tabular List.
I05 has 5 sub-code(s) that provide more specific detail: I05.0, I05.1, I05.2, I05.8, I05.9.
Use I05 when the patients documented diagnosis matches "Rheumatic mitral valve diseases" 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 Rheumatic mitral valve diseases is I05.
No, I05 is non-billable. Use a more specific sub-code for primary diagnosis billing.
I05 is in Chapter 9 of the ICD-10-CM Tabular List.
Type 1 Excludes for I05 include: mitral valve disease specified as nonrheumatic (I34.-); mitral valve disease with aortic and/or tricuspid valve involvement (I08.-).
Yes, I05 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.