M84.50 — Pathological fracture in neoplastic disease, unspecified site
M84.50 is a non-billable header ICD-10-CM code for pathological fracture in neoplastic disease, unspecified site. 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
M84.50 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.
How M84.50 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to M84.50.
- Fracture, pathological›due to›neoplastic disease NEC
Code to one of these instead M84.50
6 child codes. Green means billable.
- M84.50XAPathological fracture in neoplastic disease, unspecified site, initial encounter for fracture
- M84.50XDPathological fracture in neoplastic disease, unspecified site, subsequent encounter for fracture with routine healing
- M84.50XGPathological fracture in neoplastic disease, unspecified site, subsequent encounter for fracture with delayed healing
- M84.50XKPathological fracture in neoplastic disease, unspecified site, subsequent encounter for fracture with nonunion
- M84.50XPPathological fracture in neoplastic disease, unspecified site, subsequent encounter for fracture with malunion
- M84.50XSPathological fracture in neoplastic disease, unspecified site, sequela
Related codes at this level
Codes that share M84.5. If M84.50 is not quite right, the correct code is usually one of these.
- M84.51Pathological fracture in neoplastic disease, shoulder
- M84.52Pathological fracture in neoplastic disease, humerus
- M84.53Pathological fracture in neoplastic disease, ulna and radius
- M84.54Pathological fracture in neoplastic disease, hand
- M84.55Pathological fracture in neoplastic disease, pelvis and femur
- M84.56Pathological fracture in neoplastic disease, tibia and fibula
- M84.57Pathological fracture in neoplastic disease, ankle and foot
- M84.58Pathological fracture in neoplastic disease, other specified site
Questions about M84.50
- Is M84.50 a billable ICD-10-CM code?
- No. M84.50 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does M84.50 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).