Is M84.539 a billable ICD-10-CM code?

No. M84.539 is a non-billable header code. Code to a higher level of specificity using one of its child codes.

Where does M84.539 sit in the tabular list?

Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Disorders of bone density and structure (M80-M85).

M84.539

M84.539 — Pathological fracture in neoplastic disease, unspecified ulna and radius

Non-billable headerICD-10-CM

M84.539 is a non-billable header ICD-10-CM code for pathological fracture in neoplastic disease, unspecified ulna and radius. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.

This code requires a 7th character

The appropriate 7th character is to be added to each code from subcategory M84.5:

A: initial encounter for fracture
D: subsequent encounter for fracture with routine healing
G: subsequent encounter for fracture with delayed healing
K: subsequent encounter for fracture with nonunion
P: subsequent encounter for fracture with malunion
S: sequela

Risk adjustment

M84.539 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.

Code to one of these instead M84.539

6 child codes. Green means billable.

Related codes at this level

Codes that share M84.53. If M84.539 is not quite right, the correct code is usually one of these.

Questions about M84.539

Is M84.539 a billable ICD-10-CM code?: No. M84.539 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does M84.539 sit in the tabular list?: Diseases of the musculoskeletal system and connective tissue (M00-M99), in the block Disorders of bone density and structure (M80-M85).