M84.351 – Stress fracture, right femur

ICD-10-CM 2027 diagnosis code · Disorders of bone density and structure

Non-billable header

ICD-10-CM code M84.351

Code: M84.351 (claims format: M84351)
Description: Stress fracture, right femur
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 13. Diseases of the musculoskeletal system and connective tissue (M00-M99)
Block: M80-M85 Disorders of bone density and structure
Parent codes: M84 › M84.3 › M84.35

Billable codes under M84.351

M84.351 is a header code and cannot be used on claims. Choose the most specific code:

7th character values

Codes in this category need a 7th character to describe the encounter or episode of care.

Character	Meaning
`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

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

M84 – Disorder of continuity of bone

Excludes2 (not included here):

traumatic fracture of bone-see fracture, by site

M84.3 – Stress fracture

Applicable to:

Fatigue fracture
March fracture
Stress fracture NOS
Stress reaction

Excludes1 (not coded here):

pathological fracture NOS (M84.4.-)
pathological fracture due to osteoporosis (M80.-)
traumatic fracture (S12.-, S22.-, S32.-, S42.-, S52.-, S62.-, S72.-, S82.-, S92.-)

Excludes2 (not included here):

personal history of (healed) stress (fatigue) fracture (Z87.312)
stress fracture of vertebra (M48.4-)

Use additional code:

external cause code(s) to identify the cause of the stress fracture

7th character note:

The appropriate 7th character is to be added to each code from subcategory M84.3:

M84.35 – Stress fracture, pelvis and femur

Applicable to:

Stress fracture, hip

Related codes in M84.35

Frequently asked questions

What is ICD-10 code M84.351?

M84.351 is the ICD-10-CM code for stress fracture, right femur, in the block M80-M85 (Disorders of bone density and structure).

Is M84.351 a billable code?

No. M84.351 is a header code with more specific child codes; report one of the billable codes listed above.

What category does M84.351 belong to?

It belongs to category M84 – Disorder of continuity of bone.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.