MCMCB Pro
M84.453A

M84.453APathological fracture, unspecified femur, initial encounter for fracture

Billable / specific codeICD-10-CM

M84.453A is a billable, specific ICD-10-CM code for pathological fracture, unspecified femur, initial encounter for fracture. It is valid for submission on a claim.

7th character "A" — initial encounter for fracture

The appropriate 7th character is to be added to each code from subcategory M84.4:

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

M84.453A risk-adjusts. Under the CMS-HCC V28 model it maps to this category:

  • HCC 402 Hip Fracture/Dislocation0.467 RAF

Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.

Medicare coverage

M84.453A is named in 7 Medicare coverage policies 1 listing it as supporting medical necessity, and 6 listing it as NOT covered. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A58865Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
  • A58893Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
  • A59374Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered
  • A59434Billing and Coding: Amniotic and Placental-Derived Product Injections and/or Applications for Musculoskeletal Indications, Non-Woundnot covered

Related codes at this level

Codes that share M84.453. If M84.453A is not quite right, the correct code is usually one of these.

Questions about M84.453A

Is M84.453A a billable ICD-10-CM code?
Yes. M84.453A is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does M84.453A 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).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.