ICD-10-CM 2027
ICD-10 code for malignant pinealoma
From the official ICD-10-CM alphabetic index entry “Pinealoma › malignant”. Page updated September 29, 2026.
About coding malignant pinealoma
The ICD-10-CM code for malignant pinealoma is C75.3 (Malignant neoplasm of pineal gland).
Within C75 (malignant neoplasm of other endocrine glands and related structures), C75.3 is specifically for malignant neoplasm of pineal gland. Related codes cover of parathyroid gland (C75.0), of pituitary gland (C75.1), of craniopharyngeal duct (C75.2), of carotid body (C75.4), of aortic body and other paraganglia (C75.5), with pluriglandular involvement, unspecified (C75.8) and of endocrine gland, unspecified (C75.9).
As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.
In MS-DRG v44.0, it is part of the grouping logic for DRG 054 (Nervous System Neoplasms with MCC, relative weight 1.5194) and DRG 055 (Nervous System Neoplasms without MCC, relative weight 1.0296), in MDC 01 (Diseases and Disorders of the Nervous System), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about malignant pinealoma ICD-10 codes
What is the ICD-10 code for malignant pinealoma?
- C75.3 — Malignant neoplasm of pineal gland.
Is C75.3 billable?
- Yes. C75.3 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can C75.3 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict C75.3 as a principal diagnosis.
Is C75.3 a CC or MCC?
- C75.3 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.