Non-Billable / Non-Specific Code
ICD-10-CM I34 is the diagnosis code for Nonrheumatic mitral valve disorders. This code falls under the section "Other forms of heart disease" 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 I34. They are mutually exclusive:
Understanding where I34 sits in the ICD-10-CM classification helps ensure proper coding:
No, I34 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
I34 is the ICD-10-CM diagnosis code for "Nonrheumatic mitral valve disorders". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
I34 is located in Section I30-I5A — "Other forms of heart disease" within Chapter 9 of the ICD-10-CM Tabular List.
I34 has 5 sub-code(s) that provide more specific detail: I34.0, I34.1, I34.2, I34.8, I34.9.
Use I34 when the patients documented diagnosis matches "Nonrheumatic mitral valve disorders" 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 Nonrheumatic mitral valve disorders is I34.
No, I34 is non-billable. Use a more specific sub-code for primary diagnosis billing.
I34 is in Chapter 9 of the ICD-10-CM Tabular List.
Type 1 Excludes for I34 include: mitral valve disease (I05.9); mitral valve failure (I05.8); mitral valve stenosis (I05.0) and more.
Yes, I34 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.