ICD-10-CM 2027 diagnosis code

C76.5Malignant neoplasm of lower limb

Not billable — use a more specific code

C76.5 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 C76.5

C76.5 is the ICD-10-CM diagnosis code for malignant neoplasm of lower limb. It belongs to category C76 (malignant neoplasm of other and ill-defined sites), block C76-C80 (malignant neoplasms of ill-defined, other secondary and unspecified sites) 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 C76 (malignant neoplasm of other and ill-defined sites), C76.5 is specifically for malignant neoplasm of lower limb. Related codes cover head, face and neck (C76.0), thorax (C76.1), abdomen (C76.2), pelvis (C76.3), upper limb (C76.4) and other specified ill-defined sites (C76.8).

To report this condition, pick the subcode that matches the documentation: C76.50 (limb), C76.51 (limb) and C76.52 (limb).

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 C76.5

Notes that apply from higher levels

Instructions written at a parent level also apply to C76.5.

› From C76 Malignant neoplasm of other and ill-defined sites

Excludes1

malignant neoplasm of female genitourinary tract NOS (C57.9)
malignant neoplasm of male genitourinary tract NOS (C63.9)
malignant neoplasm of lymphoid, hematopoietic and related tissue (C81-C96)
malignant neoplasm of skin (C44.-)
malignant neoplasm of unspecified site NOS (C80.1)

Broader instructions also apply from Chapter 2: Neoplasms.

Table of Drugs & Neoplasms entries

Neoplasm, neoplastic › ankle NEC — Malignant Primary
Neoplasm, neoplastic › calf — Malignant Primary
Neoplasm, neoplastic › extremity › lower — Malignant Primary
Neoplasm, neoplastic › foot NEC — Malignant Primary
Neoplasm, neoplastic › heel NEC — Malignant Primary
Neoplasm, neoplastic › hip NEC — Malignant Primary
Neoplasm, neoplastic › knee NEC — Malignant Primary
Neoplasm, neoplastic › leg NEC — Malignant Primary
Neoplasm, neoplastic › limb › lower — Malignant Primary
Neoplasm, neoplastic › popliteal fossa or space — Malignant Primary
Neoplasm, neoplastic › thigh NEC — Malignant Primary
Neoplasm, neoplastic › toe NEC — Malignant Primary

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about C76.5

Is C76.5 billable?: No. C76.5 is a header code. Report one of its more specific subcodes instead.