M84.36
Stress fracture, tibia and fibula
M84.36 is a non-billable ICD-10-CM code header for stress fracture, tibia and fibula. 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 M84.361 Stress fracture, right tibia; M84.362 Stress fracture, left tibia; M84.363 Stress fracture, right fibula; M84.364 Stress fracture, left fibula and 1 more. Its coding notes include a Use additional code instruction, 3 Excludes1 entries and 13 Excludes2 entries.
7th characters
Every code below needs one of these (defined at M84.3).
The appropriate 7th character is to be added to each code from subcategory M84.3:
- 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
Use additional code
Add the listed code as a secondary code, if known.
- external cause code(s) to identify the cause of the stress fracture
Excludes1
Not coded here. The listed conditions generally should not be reported together.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
- traumatic fracture of bone-see fracture, by site
Also from chapter/block level (10 notes)
- 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)
- Use an external cause code following the code for the musculoskeletal condition, if applicable, to identify the cause of the musculoskeletal condition
Alphabetic Index terms
Terms the official Alphabetic Index lists for this code. 2 entries