ICD-10 Code E88.811 – Insulin resistance syndrome, Type A (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code E88.811 – Insulin resistance syndrome, Type A
What it is
E88.811 identifies insulin resistance syndrome, Type A, a rare disorder in which the body does not respond normally to insulin. It is typically linked to severe insulin resistance rather than common metabolic syndrome.
Clinical signs
Clinical features vary; refer to documentation. Commonly noted findings include marked insulin resistance, hyperinsulinemia, and signs such as acanthosis nigricans or abnormal glucose handling when documented by the clinician.
When to use this code
Use this code when the provider documents insulin resistance syndrome, Type A, or clearly states Type A insulin resistance. It is appropriate when the diagnosis is established in the record and the encounter centers on this condition. If the note only says “insulin resistance” without type, check documentation.
Do not use for
Do not use this code for nonspecific insulin resistance, obesity-related metabolic syndrome, or diabetes mellitus without documented Type A insulin resistance. Check documentation if the record does not clearly identify the syndrome type.
Coding tip
Code only when Type A is explicitly documented; otherwise, query the provider for clarification.