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ICD-10-CM 2027 diagnosis code

C74.9Malignant neoplasm of unspecified part of adrenal gland

Not billable — use a more specific code

C74.9 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About C74.9

C74.9 is the ICD-10-CM diagnosis code for malignant neoplasm of unspecified part of adrenal gland. It belongs to category C74 (malignant neoplasm of adrenal gland), block C73-C75 (malignant neoplasms of thyroid and other endocrine glands) and chapter 2 (neoplasms). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within C74, choose C74.9 (unspecified part of adrenal gland) only when documentation doesn't support a more specific option: cortex of adrenal gland (C74.0) and medulla of adrenal gland (C74.1).

To report this condition, pick the subcode that matches the documentation: C74.90 (gland), C74.91 (gland) and C74.92 (gland).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under C74.9

Notes that apply from higher levels

Instructions written at a parent level also apply to C74.9.

Broader instructions also apply from Chapter 2: Neoplasms.

Table of Drugs & Neoplasms entries

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
  • No changes since FY2016.

Common questions about C74.9

Is C74.9 billable?

No. C74.9 is a header code. Report one of its more specific subcodes instead.