ICD-10 Code C75.3 – Malignant neoplasm of pineal gland (2026): Diagnosis, Symptoms & Billing Guide
2026 ICD-10-CM Diagnosis Code C75.3 – Malignant neoplasm of pineal gland
What it is
C75.3 identifies a malignant tumor arising in the pineal gland, a small endocrine structure near the center of the brain. Use this code when documentation specifies a primary cancer of the pineal gland.
Clinical signs
Clinical features vary; refer to documentation. Commonly reported findings may include symptoms from local mass effect or raised intracranial pressure, but you should code only what the provider documents.
When to use this code
Use C75.3 when the record clearly states malignant neoplasm of the pineal gland or pineal gland cancer. It is appropriate for confirmed primary disease, including pathology or imaging-supported documentation that names the pineal gland as the site.
If the note only says “brain tumor,” “intracranial mass,” or another nonspecific diagnosis, check documentation before assigning this code. Confirm whether the lesion is primary, metastatic, or of another specified site.
Do not use for
Do not use C75.3 for benign pineal lesions, cysts, or nonspecific intracranial masses. Also avoid it when the tumor is documented as metastatic to the pineal gland rather than primary there.
Coding tip
Verify the exact anatomic site and whether the neoplasm is primary or secondary before coding C75.3.