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ICD-10 Guide
ICD-10 CodesS41.109

S41.109

Billable

Unspecified open wound of unspecified upper arm

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

Code Description

ICD-10 S41.109 is a billable code used to indicate a diagnosis of unspecified open wound of unspecified upper arm.

Key Diagnostic Point:

An unspecified open wound of the upper arm refers to a traumatic injury that results in a break in the skin and underlying tissues in the upper arm region, which may involve muscle, fat, and potentially bone. This type of injury can occur due to various mechanisms such as falls, accidents, or sports injuries. The open wound may present with varying degrees of severity, from superficial abrasions to deep lacerations that expose underlying structures. Complications can include infection, delayed healing, and potential damage to surrounding nerves and blood vessels. In the context of orthopedic injuries, this code may be relevant when documenting associated conditions such as shoulder dislocations, humeral fractures, or rotator cuff injuries, which can occur concurrently with open wounds. Surgical interventions may be necessary for repair, including debridement, suturing, or more complex orthopedic procedures. Accurate coding requires careful documentation of the injury's specifics, including the mechanism of injury, extent of the wound, and any associated injuries to ensure appropriate treatment and reimbursement.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in the severity and type of open wounds
  • Potential for associated injuries (e.g., fractures, dislocations)
  • Need for detailed documentation to support coding
  • Differentiation from similar codes for specific types of wounds

Audit Risk Factors

  • Insufficient documentation of the mechanism of injury
  • Lack of specificity regarding the type of wound
  • Failure to document associated injuries
  • Inconsistent coding practices among providers

Specialty Focus

Medical Specialties

Orthopedic Surgery

Documentation Requirements

Detailed operative notes, including the type of wound, associated injuries, and surgical interventions performed.

Common Clinical Scenarios

Open fractures of the humerus, rotator cuff repairs following traumatic injuries, and shoulder dislocations with associated soft tissue injuries.

Billing Considerations

Ensure that all associated injuries are documented to support the use of this code and any related surgical codes.

Emergency Medicine

Documentation Requirements

Comprehensive documentation of the initial assessment, mechanism of injury, and any immediate interventions performed.

Common Clinical Scenarios

Trauma cases presenting with open wounds and potential fractures or dislocations.

Billing Considerations

Accurate documentation of the injury's mechanism and extent is crucial for coding and billing.

Coding Guidelines

Inclusion Criteria

Use S41.109 When
  • According to ICD
  • 10 coding guidelines, this code should be used when the specific type of open wound is not documented
  • Coders should ensure that the documentation supports the use of this unspecified code and consider more specific codes if available

Exclusion Criteria

Do NOT use S41.109 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

20605CPT Code

Arthrocentesis, aspiration and/or injection into a major joint or bursa

Clinical Scenario

Used when a patient with an open wound also requires aspiration of a joint due to swelling.

Documentation Requirements

Document the reason for the procedure and the findings during the aspiration.

Specialty Considerations

Orthopedic specialists should ensure that the joint status is clearly documented.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more detailed coding of injuries, including open wounds. This has improved the specificity of data collected for treatment outcomes and reimbursement processes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more detailed coding of injuries, including open wounds. This has improved the specificity of data collected for treatment outcomes and reimbursement processes.

Reimbursement & Billing Impact

reimbursement processes.

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 S41.109 instead of a more specific code?

Use S41.109 when the documentation does not specify the type or location of the open wound in the upper arm. If more specific details are available, opt for those codes to ensure accurate representation of the patient's condition.