C74.10 Malignant neoplasm of medulla of unspecified adrenal gland

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Risk adjustment (HCC)

• CMS-HCC V28: HCC 22 — Bladder, Colorectal, and Other Cancers
• CMS-HCC V22: HCC 10 — Lymphoma and Other Cancers
• RxHCC V08: HCC 22 — Prostate, Breast, Bladder, and Other Cancers and Tumors
• ESRD V24: HCC 10

MS-DRG index

Defines the logic of DRG(s) 643-645 in MDC 10.

Approximate ICD-9-CM (GEMs)

• 194.0 Malignant neoplasm of adrenal gland (approximate)

Code annotations containing back-references to C74.10

Back-references to C74.1

• Code Also: E27.5 Adrenomedullary hyperfunction ("malignant pheochromocytoma (C74.1-)")

Back-references to C74

• Type 1 Excludes: C75 Malignant neoplasm of other endocrine glands and related structures ("malignant neoplasm of adrenal gland (C74.-)")

Diagnosis Index entries for C74.10

• Pheochromoblastoma › unspecified site
• Pheochromocytoma › malignant › unspecified site

Nearby codes

• C74.0 Malignant neoplasm of cortex of adrenal gland
• C74.00 Malignant neoplasm of cortex of unspecified adrenal gland
• C74.01 Malignant neoplasm of cortex of right adrenal gland
• C74.02 Malignant neoplasm of cortex of left adrenal gland
• C74.1 Malignant neoplasm of medulla of adrenal gland
• C74.10 Malignant neoplasm of medulla of unspecified adrenal gland (this code)
• C74.11 Malignant neoplasm of medulla of right adrenal gland
• C74.12 Malignant neoplasm of medulla of left adrenal gland
• C74.9 Malignant neoplasm of unspecified part of adrenal gland
• C74.90 Malignant neoplasm of unspecified part of unspecified adrenal gland
• C74.91 Malignant neoplasm of unspecified part of right adrenal gland