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M84.3

Non-billable

Stress fracture

M84.3 is the ICD-10-CM code for Stress fracture. It is a non-billable category code — use a more specific child code such as M84.30 for billing.

Status
Header (non-billable)
Chapter
M00-M99
Parent
M84
Subcodes
9
Edition
FY2026

M00-M99 Diseases of the musculoskeletal system and connective tissue

Includes

  • •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

Frequently asked questions

What is ICD-10 code M84.3?
M84.3 is the ICD-10-CM code for "Stress fracture". It falls under M00-M99 Diseases of the musculoskeletal system and connective tissue.
Is M84.3 a billable code?
No — M84.3 is a non-billable header code. Use a more specific child code (such as M84.30) for billing.
What are the subcodes of M84.3?
M84.3 has 9 more specific child codes, including M84.30, M84.31, M84.32.
What is excluded from M84.3?
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.-).

Source: CMS ICD-10-CM FY2026. For informational purposes only — not medical advice. See our medical disclaimer.

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