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ICD-10 Guide
DiagnosesLeft Hamstring Strain

Left Hamstring Strain

ICD-10 Coding for Left Hamstring Strain(S76.312A, S76.312D)

PRIMARY SPECIALTYSports Medicine
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Left Hamstring Strain?
Essential facts and insights about Left Hamstring Strain

Key Clinical Considerations:

  • Pain in the posterior thigh, swelling, bruising, and difficulty in extending the knee or flexing the hip.
  • MRI or ultrasound may show muscle tears or edema.
  • Tenderness on palpation of the hamstring muscles, decreased range of motion, and strength deficits.

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history including mechanism of injury, severity of symptoms, and previous injuries.
  • Use of terms like 'strain', 'tear', and 'grade' to specify the severity.
  • Examples include detailed descriptions of the injury, treatment plan, and follow-up assessments.

Coding Guidelines

Usage Guidelines & Examples

  • Follow guidelines for coding muscle strains to avoid upcoding or downcoding.
  • Common errors include misclassifying the grade of the strain.

Code Exclusions

Important Exclusions

  • Complete muscle tears, other muscle strains in the same region, and conditions like sciatica.
  • Alternative codes for right hamstring strain or unspecified hamstring injuries.

Related ICD-10 Codes

Primary Codes
S76.012A
Strain of left hamstring muscle, initial encounter
Ancillary Codes
M79.605
Differential Codes
S76.311A
S76.319A
S76.312A

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Sports Medicine

Specialty Applications

  • Athletes, active individuals, and patients with a history of hamstring injuries.
  • Sports medicine clinics, physical therapy centers, and orthopedic practices.

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

Documentation requirements?

Include detailed patient history, physical exam findings, and treatment plans.

Billing considerations?

Ensure accurate coding to reflect the severity and specifics of the strain for proper reimbursement.