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ICD-10 Guide
ICD-10 CodesS61.159

S61.159

Billable

Open bite of unspecified thumb with damage to nail

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

Code Description

ICD-10 S61.159 is a billable code used to indicate a diagnosis of open bite of unspecified thumb with damage to nail.

Key Diagnostic Point:

An open bite of the thumb is a type of traumatic injury characterized by a break in the skin and underlying tissues, typically resulting from a puncture or laceration. This injury often occurs in scenarios involving animal bites, human bites, or sharp objects. The damage to the nail can range from minor to severe, potentially leading to nail loss or deformity. Clinically, patients may present with pain, swelling, and bleeding at the site of injury. The thumb, being a critical digit for hand function, may also exhibit compromised mobility and strength, impacting daily activities. In addition to the immediate concerns of infection and proper wound care, there may be associated injuries such as fractures of the phalanges, tendon injuries affecting flexion or extension, and nerve damage that can lead to sensory deficits. Treatment may involve surgical intervention to repair damaged structures, debridement of necrotic tissue, and stabilization of fractures. Proper coding requires thorough documentation of the injury mechanism, extent of damage, and any associated procedures performed.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in injury severity and associated complications
  • Need for detailed documentation of injury mechanism
  • Potential for co-existing conditions (e.g., fractures, tendon injuries)
  • Variability in treatment approaches (surgical vs. conservative)

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury
  • Failure to document associated injuries (e.g., fractures, tendon damage)
  • Inconsistent coding of the injury site (unspecified vs. specific)
  • Lack of clarity in treatment documentation

Specialty Focus

Medical Specialties

Orthopedic Surgery

Documentation Requirements

Detailed notes on the extent of injury, surgical procedures performed, and post-operative care.

Common Clinical Scenarios

Fractures associated with open bites, tendon repairs, and reconstructive surgeries.

Billing Considerations

Ensure documentation reflects the complexity of the injury and any surgical interventions.

Emergency Medicine

Documentation Requirements

Comprehensive assessment of the injury, including mechanism, initial treatment, and follow-up care.

Common Clinical Scenarios

Management of acute bites, wound care, and assessment for potential infections.

Billing Considerations

Accurate documentation of the injury's nature and immediate interventions is crucial for coding.

Coding Guidelines

Inclusion Criteria

Use S61.159 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the injury's specifics, including the mechanism of injury and any associated complications

Exclusion Criteria

Do NOT use S61.159 When
  • Exclude codes for closed bites or injuries to other fingers unless specified

Related ICD-10 Codes

Related CPT Codes

12001CPT Code

Simple repair of superficial wounds

Clinical Scenario

Used for repair of the open bite wound on the thumb.

Documentation Requirements

Document the size of the wound and the method of repair.

Specialty Considerations

Orthopedic surgeons may perform more complex repairs if associated injuries are present.

26300CPT Code

Tendon repair

Clinical Scenario

Used when there is a tendon injury associated with the open bite.

Documentation Requirements

Detailed notes on the extent of tendon damage and repair technique.

Specialty Considerations

Requires thorough documentation of pre-operative and post-operative assessments.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of injuries, improving the accuracy of data collection and reimbursement processes. S61.159 provides a clear framework for documenting open bites, which can lead to better patient management and outcomes.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of injuries, improving the accuracy of data collection and reimbursement processes. S61.159 provides a clear framework for documenting open bites, which can lead to better patient management and outcomes.

Reimbursement & Billing Impact

reimbursement processes. S61.159 provides a clear framework for documenting open bites, which can lead to better patient management and outcomes.

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

What is the difference between S61.159 and S61.151?

S61.159 is used for unspecified thumb injuries, while S61.151 specifies an open bite of the right thumb. Accurate coding depends on the documentation of the injury's specifics.

When should I use alternative codes for open bites?

Alternative codes should be used when the specifics of the injury are known, such as the location (right or left thumb) or if there are additional complications.