Alphabetic Index FY2027

M84.75

Atypical femoral fracture

FY2027Chapter 13: Diseases of the musculoskeletal system and connective tissue/M80–M85 Disorders of bone density and structure

Non-billable headerNot valid on its own. Use one of the more specific codes under it.

M84.75 is a non-billable ICD-10-CM code header for atypical femoral fracture. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are M84.750 Atypical femoral fracture, unspecified; M84.751 Incomplete atypical femoral fracture, right leg; M84.752 Incomplete atypical femoral fracture, left leg; M84.753 Incomplete atypical femoral fracture, unspecified leg and 6 more. Its coding notes include 11 Excludes2 entries.

7th characters

Every code below needs one of these.

The appropriate 7th character is to be added to each code from M84.75:

  • Ainitial encounter for fracture
  • Dsubsequent encounter for fracture with routine healing
  • Gsubsequent encounter for fracture with delayed healing
  • Ksubsequent encounter for fracture with nonunion
  • Psubsequent encounter for fracture with malunion
  • Ssequela

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Inherited from M84 Disorder of continuity of bone
  • traumatic fracture of bone-see fracture, by site
Also from chapter/block level (10 notes)
Inherited from Chapter 13 Diseases of the musculoskeletal system and connective tissue
  • arthropathic psoriasis (L40.5-)
  • certain conditions originating in the perinatal period (P04-P96)
  • certain infectious and parasitic diseases (A00-B99)
  • compartment syndrome (traumatic) (T79.A-)
  • complications of pregnancy, childbirth and the puerperium (O00-O9A)
  • congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
  • endocrine, nutritional and metabolic diseases (E00-E88)
  • injury, poisoning and certain other consequences of external causes (S00-T88)
  • neoplasms (C00-D49)
  • symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)

Notes

Also from chapter/block level (1 note)
Inherited from Chapter 13 Diseases of the musculoskeletal system and connective tissue
  • Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition

More specific codes under M84.75 10