ICD-10 Code I15.2 – Hypertension secondary to endocrine disorders (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code I15.2 – Hypertension secondary to endocrine disorders
What it is
I15.2 identifies high blood pressure caused by an endocrine disorder, such as a hormone-producing condition. Use it when the documentation links hypertension to a specific endocrine cause.
Clinical signs
Clinical features vary; refer to documentation. You may see hypertension alongside signs of an endocrine disorder, but the record should clearly state the secondary relationship.
When to use this code
Use this code when the provider documents hypertension due to an endocrine condition, not primary essential hypertension. It applies when the endocrine disorder is the cause or contributing factor. If the cause is not documented, check documentation before assigning this code.
Do not use for
Do not use I15.2 for unspecified hypertension or hypertension with no documented endocrine cause. Do not use it if the chart only mentions an endocrine disorder and hypertension separately.
Coding tip
Code the underlying endocrine disorder first when documentation supports a causal link, and confirm the secondary relationship in the note.