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ICD-10 Guide
ICD-10 CodesS51.809

S51.809

Billable

Unspecified open wound of unspecified forearm

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/24/2025

Code Description

ICD-10 S51.809 is a billable code used to indicate a diagnosis of unspecified open wound of unspecified forearm.

Key Diagnostic Point:

An unspecified open wound of the forearm refers to a laceration or puncture that has penetrated the skin and underlying tissues, resulting in exposure of the underlying structures. This type of injury can occur due to various mechanisms, including trauma from sharp objects, falls, or accidents. The forearm consists of two bones, the radius and ulna, and injuries to these bones can accompany open wounds. Complications such as compartment syndrome may arise if swelling occurs within the confined space of the forearm, leading to increased pressure and potential damage to nerves and blood vessels. Orthopedic fixation procedures may be necessary if there is a fracture associated with the open wound, requiring stabilization through surgical intervention. Accurate coding of this condition is essential for proper treatment planning and reimbursement, as it may involve multiple specialties, including orthopedics and emergency medicine.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in documentation of wound type and severity
  • Potential for associated fractures or complications
  • Need for precise anatomical localization
  • Differentiation from similar codes for specific injuries

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury
  • Failure to specify the exact location of the wound
  • Lack of detail regarding associated injuries
  • Inconsistent coding practices among providers

Specialty Focus

Medical Specialties

Orthopedics

Documentation Requirements

Detailed descriptions of the wound, associated fractures, and treatment plans.

Common Clinical Scenarios

Fractures of the radius or ulna accompanying an open wound, requiring surgical intervention.

Billing Considerations

Documentation must clearly indicate the type of fixation used and any complications such as compartment syndrome.

Emergency Medicine

Documentation Requirements

Thorough assessment of the wound, including size, depth, and any foreign bodies present.

Common Clinical Scenarios

Initial evaluation and management of open wounds, including irrigation and debridement.

Billing Considerations

Accurate documentation of the mechanism of injury and any immediate interventions performed.

Coding Guidelines

Inclusion Criteria

Use S51.809 When
  • Follow official ICD
  • CM coding guidelines, ensuring that the code is used only when the specific site of the wound is not documented
  • Include additional codes for any associated fractures or complications

Exclusion Criteria

Do NOT use S51.809 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

12002CPT Code

Simple repair of wounds

Clinical Scenario

Used for suturing an open wound on the forearm.

Documentation Requirements

Document the size and depth of the wound, as well as the method of closure.

Specialty Considerations

Orthopedic specialists may need to document any associated fractures.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of open wounds, improving the granularity of data for treatment and outcomes. S51.809 serves as a catch-all for unspecified cases, but coders should strive for specificity when possible.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of open wounds, improving the granularity of data for treatment and outcomes. S51.809 serves as a catch-all for unspecified cases, but coders should strive for specificity when possible.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of open wounds, improving the granularity of data for treatment and outcomes. S51.809 serves as a catch-all for unspecified cases, but coders should strive for specificity when possible.

Resources

Clinical References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Coding & Billing References

  • •
    ICD-10-CM Official Guidelines for Coding and Reporting

Frequently Asked Questions

When should I use S51.809 instead of a more specific code?

Use S51.809 when the documentation does not specify the exact location or type of the open wound, and no other specific codes apply.