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ICD-10 Guide
ICD-10 CodesS01.40

S01.40

Billable

Unspecified open wound of cheek and temporomandibular area

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/11/2025

Code Description

ICD-10 S01.40 is a billable code used to indicate a diagnosis of unspecified open wound of cheek and temporomandibular area.

Key Diagnostic Point:

The code S01.40 refers to an unspecified open wound located in the cheek and temporomandibular area. This type of injury can result from various mechanisms, including blunt trauma, lacerations, or penetrating injuries. Common causes include accidents, assaults, or sports-related injuries. Clinically, patients may present with visible lacerations, swelling, and pain in the affected area. The temporomandibular joint (TMJ) may also be involved, leading to functional impairment, such as difficulty in chewing or speaking. Diagnosis typically involves a thorough physical examination, imaging studies if necessary, and assessment of the wound's depth and extent. Management may include wound cleaning, suturing, and, in some cases, surgical intervention to repair underlying structures. Complications can include infection, scarring, and dysfunction of the TMJ. Accurate coding requires detailed documentation of the injury's mechanism, location, and any associated injuries.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variability in injury mechanisms (e.g., blunt vs. penetrating trauma)
  • Potential involvement of adjacent structures (e.g., TMJ dysfunction)
  • Need for precise documentation of wound characteristics
  • Differentiation from similar codes for facial injuries

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury
  • Failure to specify the depth or extent of the wound
  • Misclassification of the injury type (open vs. closed)
  • Lack of follow-up documentation on treatment outcomes

Specialty Focus

Medical Specialties

Emergency Medicine

Documentation Requirements

Documentation should include a detailed account of the injury mechanism, initial assessment findings, and treatment provided in the emergency setting.

Common Clinical Scenarios

Patients presenting with lacerations from accidents, sports injuries, or assaults requiring immediate care.

Billing Considerations

Ensure that all relevant details about the injury and treatment are captured to support the coding.

Surgery

Documentation Requirements

Operative reports must detail the surgical approach, findings, and any repairs made to the cheek or TMJ area.

Common Clinical Scenarios

Surgical management of complex lacerations or fractures involving the cheek and TMJ.

Billing Considerations

Accurate coding requires clear documentation of the surgical procedure and any complications encountered.

Coding Guidelines

Inclusion Criteria

Use S01.40 When
  • Follow the official ICD
  • CM coding guidelines, ensuring that the code accurately reflects the injury's specifics, including location, type, and any associated injuries

Exclusion Criteria

Do NOT use S01.40 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

12001CPT Code

Simple repair of superficial wounds

Clinical Scenario

Used for suturing a laceration in the cheek area.

Documentation Requirements

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

Specialty Considerations

Emergency and surgical specialties should ensure accurate coding based on the complexity of the repair.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of injuries, including open wounds, which enhances data accuracy and improves patient care tracking.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of injuries, including open wounds, which enhances data accuracy and improves patient care tracking.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of injuries, including open wounds, which enhances data accuracy and improves patient care tracking.

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 should I document to support the use of S01.40?

Document the mechanism of injury, the depth and extent of the wound, any associated injuries, and the treatment provided to ensure accurate coding.