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ICD-10 Guide
ICD-10 CodesS31.05

S31.05

Billable

Open bite of lower back and pelvis

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/23/2025

Code Description

ICD-10 S31.05 is a billable code used to indicate a diagnosis of open bite of lower back and pelvis.

Key Diagnostic Point:

An open bite of the lower back and pelvis refers to a traumatic injury characterized by a laceration or puncture wound that penetrates through the skin and underlying tissues in the lumbar region and pelvic area. This type of injury can occur due to various mechanisms, including animal bites, falls, or penetrating trauma from sharp objects. Clinically, patients may present with significant pain, swelling, and potential bleeding at the injury site. The open nature of the wound increases the risk of infection, necessitating prompt medical evaluation and intervention. In cases of severe injury, associated complications may include damage to underlying structures such as muscles, nerves, and blood vessels, as well as potential involvement of the genitourinary system. Emergency surgical intervention may be required to debride the wound, repair any damaged structures, and prevent infection. Accurate coding of this condition is crucial for appropriate treatment planning and reimbursement.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Variety of potential mechanisms of injury
  • Need for detailed documentation of the extent of injury
  • Potential for associated injuries in the lumbar spine and pelvis
  • Variability in treatment approaches based on injury severity

Audit Risk Factors

  • Inadequate documentation of the mechanism of injury
  • Failure to note associated injuries or complications
  • Misclassification of the injury type (open vs. closed)
  • Lack of clarity in surgical intervention details

Specialty Focus

Medical Specialties

Emergency Medicine

Documentation Requirements

Detailed description of the injury mechanism, assessment of vital signs, and any immediate interventions performed.

Common Clinical Scenarios

Patients presenting with traumatic injuries from falls, animal bites, or accidents requiring urgent care.

Billing Considerations

Ensure thorough documentation of the injury's extent and any associated injuries to support coding.

Orthopedic Surgery

Documentation Requirements

Comprehensive surgical notes detailing the procedure performed, including any repairs to underlying structures.

Common Clinical Scenarios

Surgical intervention for open fractures or lacerations involving the lumbar spine or pelvis.

Billing Considerations

Document any complications or follow-up care required post-surgery.

Coding Guidelines

Inclusion Criteria

Use S31.05 When
  • Follow official ICD
  • 10 coding guidelines, ensuring accurate documentation of the injury's nature, location, and any associated complications
  • Include details of the mechanism of injury and any surgical interventions performed

Exclusion Criteria

Do NOT use S31.05 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

12001CPT Code

Simple repair of superficial wounds

Clinical Scenario

Used for minor lacerations in the emergency department.

Documentation Requirements

Document the size and location of the wound, as well as the repair technique used.

Specialty Considerations

Emergency medicine providers 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 open bite injuries, improving the accuracy of patient records and facilitating better treatment planning.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of open bite injuries, improving the accuracy of patient records and facilitating better treatment planning.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of open bite injuries, improving the accuracy of patient records and facilitating better treatment planning.

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 an open bite and a closed injury?

An open bite involves a break in the skin and underlying tissues, exposing them to the external environment, while a closed injury does not penetrate the skin.