M84.351

⚠ Non-billable (Header)

Stress fracture, right femur

Diseases of the musculoskeletal system and connective tissue (M00-M99)

⚠️ This is a category header code — not billable. Use a more specific child code below.

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❌ Excludes1

inherited

Rules inherited from parent codes in the hierarchy.

M84.3

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

⚠️ Excludes2

inherited

Rules inherited from parent codes.

M84.3

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

M84

• traumatic fracture of bone-see fracture, by site

📋 Code Instructions

inherited

M84.3

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

Child Codes (6)

M84.351AStress fracture, right femur, initial encounter for fracture✓ Billable M84.351DStress fracture, right femur, subsequent encounter for fracture with routine healing✓ Billable M84.351GStress fracture, right femur, subsequent encounter for fracture with delayed healing✓ Billable M84.351KStress fracture, right femur, subsequent encounter for fracture with nonunion✓ Billable M84.351PStress fracture, right femur, subsequent encounter for fracture with malunion✓ Billable M84.351SStress fracture, right femur, sequela✓ Billable

Clinical Description

ICD-10-CM code M84.351 represents stress fracture, right femur. This code falls under the Diseases of the musculoskeletal system and connective tissue (M00-M99) classification. It is a non-billable category header code. A more specific child code from the list below must be used for billing and reimbursement purposes.

This is a 7-character code at the 6th level of specificity. There are 6 more specific child codes under M84.351. Coders should note that M84.351 has 3 Excludes1 restriction(s) — codes that cannot be reported together on the same claim.

Frequently Asked Questions

What is ICD-10 code M84.351?

ICD-10-CM code M84.351 is "Stress fracture, right femur". It belongs to the category: Diseases of the musculoskeletal system and connective tissue (M00-M99).

Is M84.351 a billable ICD-10 code?

No, M84.351 is a non-billable header code. A more specific child code must be used for billing.

What codes are excluded with M84.351?

M84.351 has 3 Excludes1 rule(s). These codes are mutually exclusive and cannot be coded together on the same claim.

Can M84.351 be coded with other codes?

M84.351 has 3 Excludes2 note(s). These conditions can be coded together if both are documented in the patient record.

Related Codes in M84.35

Other codes in the same category that may be relevant for differential coding:

M84.350Stress fracture, pelvis M84.352Stress fracture, left femur M84.353Stress fracture, unspecified femur M84.359Stress fracture, hip, unspecified

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Code Information

CodeM84.351

BillableNo — Header code

ParentM84.35

CategoryDiseases of the musculoskeletal system and connective tissue (M00-M99)

Excludes13 rule(s)

Excludes23 note(s)

Child codes6

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)