Non-Billable / Non-Specific Code
ICD-10-CM I78 is the diagnosis code for Diseases of capillaries. This code falls under the section "Diseases of arteries, arterioles and capillaries" 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.
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 I78 sits in the ICD-10-CM classification helps ensure proper coding:
No, I78 is a non-billable/non-specific code. You should use a more specific sub-code for billing and reimbursement.
I78 is the ICD-10-CM diagnosis code for "Diseases of capillaries". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
I78 is located in Section I70-I79 — "Diseases of arteries, arterioles and capillaries" within Chapter 9 of the ICD-10-CM Tabular List.
I78 has 4 sub-code(s) that provide more specific detail: I78.0, I78.1, I78.8, I78.9.
Use I78 when the patients documented diagnosis matches "Diseases of capillaries" 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 Diseases of capillaries is I78.
No, I78 is non-billable. Use a more specific sub-code for primary diagnosis billing.
I78 is in Chapter 9 of the ICD-10-CM Tabular List.
Yes, I78 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.