Malignant neoplasm of other and ill-defined sites (C76) ICD-10-CM
The C76 code range covers malignant neoplasm of other and ill-defined sites with 14 ICD-10-CM diagnosis codes. 11 of them are billable and valid for claim submission in fiscal year 2026, and the category headers group them but cannot themselves be billed.
Type 1 Excludes
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Codes in the C76 Range 14 codes · 11 billable
- C76 Malignant neoplasm of other and ill-defined sitesNon-billable
- C76.0 Malignant neoplasm of head, face and neck
- C76.1 Malignant neoplasm of thorax
- C76.2 Malignant neoplasm of abdomen
- C76.3 Malignant neoplasm of pelvis
- C76.4 Malignant neoplasm of upper limbNon-billable
- C76.40 Malignant neoplasm of unspecified upper limb
- C76.41 Malignant neoplasm of right upper limb
- C76.42 Malignant neoplasm of left upper limb
- C76.5 Malignant neoplasm of lower limbNon-billable
- C76.50 Malignant neoplasm of unspecified lower limb
- C76.51 Malignant neoplasm of right lower limb
- C76.52 Malignant neoplasm of left lower limb
- C76.8 Malignant neoplasm of other specified ill-defined sites
Clinical Terms in This Code Range
Definitions from the National Library of Medicine for conditions coded in the C76 range.
Perineum
The body region lying between the genital area and the ANUS on the surface of the trunk, and to the shallow compartment lying deep to this area that is inferior to the PELVIC DIAPHRAGM. The surface area is between the VULVA and the anus in the female, and between the SCROTUM and the anus in the male.
About the C76 Code Range
The ICD-10 code section C76 covers malignant neoplasms occurring in other and ill-defined anatomical sites that do not fall into more specific cancer categories. These codes are used to document cancers in less common or anatomically ambiguous locations such as parts of the head, thorax, abdomen, pelvis, and limbs.
Specifically, C76.0 refers to malignant tumors of the head, face, and neck, including conditions also known as adenocarcinoma of the neck or malignant melanoma of head and neck. Codes like C76.1 and C76.2 address cancers in the thorax and abdomen, respectively, capturing tumors such as primary thoracic neuroblastoma or malignant melanoma of the chest wall. Lower limb and upper limb malignancies are classified under C76.4 and C76.5, with subcodes differentiating right, left, or unspecified limbs. The section also includes C76.8 for malignant neoplasms of other specified but ill-defined sites such as the trunk or flank. Using these codes helps healthcare professionals accurately identify and report rare or overlapping tumors when precise anatomical location is unclear.
Questions About This Page
How many billable codes are in the C76 range?
Of the 14 codes in this range, 11 are billable and valid for claim submission from October 1, 2025 through September 30, 2026. Category header codes group them but cannot be reported on claims.
What does the C76 range classify?
The range classifies malignant neoplasm of other and ill-defined sites. Each code links to its own reference page with billing status, MS-DRG grouping, coding notes, and clinical information.
Related References
Source: CMS FY 2026 ICD-10-CM Tabular List and order file, effective October 1, 2025 through September 30, 2026.
