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ICD-10 Guide
ICD-10 CodesD68.51

D68.51

Billable

Activated protein C resistance

BILLABLE STATUSYes
IMPLEMENTATION DATEOctober 1, 2015
LAST UPDATED09/05/2025

Code Description

ICD-10 D68.51 is a billable code used to indicate a diagnosis of activated protein c resistance.

Key Diagnostic Point:

Activated protein C resistance (APCR) is a coagulation defect characterized by the body's inability to effectively regulate blood clotting due to a deficiency or dysfunction of activated protein C (APC). This condition is often associated with Factor V Leiden mutation, which leads to an increased risk of venous thromboembolism (VTE). Patients with APCR may present with recurrent thrombosis, particularly in the deep veins of the legs (deep vein thrombosis) or pulmonary arteries (pulmonary embolism). The condition can manifest in various clinical scenarios, including during pregnancy, surgery, or in the presence of other risk factors such as obesity or prolonged immobility. Diagnosis typically involves specialized coagulation tests, including the activated protein C resistance assay, which measures the response of a patient's plasma to APC. Management may include anticoagulation therapy, especially in patients with a history of thrombosis. Understanding APCR is crucial for healthcare providers to prevent serious complications associated with thrombosis and to guide appropriate treatment strategies.

Code Complexity Analysis

Complexity Rating: Medium

Medium Complexity

Complexity Factors

  • Requires understanding of coagulation pathways and specific tests.
  • Differentiation from other coagulation disorders can be challenging.
  • Documentation must clearly indicate the presence of APCR and its clinical implications.
  • Potential for misdiagnosis with other bleeding or clotting disorders.

Audit Risk Factors

  • Inadequate documentation of laboratory results confirming APCR.
  • Failure to document the clinical significance of APCR in the patient's treatment plan.
  • Misclassification of APCR as a bleeding disorder rather than a thrombophilia.
  • Lack of follow-up documentation regarding anticoagulation management.

Specialty Focus

Medical Specialties

Hematology

Documentation Requirements

Detailed lab results, patient history of thrombotic events, and treatment plans.

Common Clinical Scenarios

Patients presenting with recurrent thrombosis, especially in young adults.

Billing Considerations

Ensure clear documentation of the relationship between APCR and any thrombotic events.

Obstetrics

Documentation Requirements

History of APCR in pregnant patients, management plans during pregnancy.

Common Clinical Scenarios

Pregnant patients with a history of thrombosis or APCR.

Billing Considerations

Document the implications of APCR on pregnancy management and delivery.

Coding Guidelines

Inclusion Criteria

Use D68.51 When
  • Follow official ICD
  • CM coding guidelines, ensuring accurate documentation of the diagnosis and any associated conditions
  • Include relevant clinical details that support the diagnosis of APCR

Exclusion Criteria

Do NOT use D68.51 When
No specific exclusions found.

Related ICD-10 Codes

Related CPT Codes

85384CPT Code

Activated Protein C Resistance Test

Clinical Scenario

Used to confirm diagnosis of APCR in patients with a history of thrombosis.

Documentation Requirements

Document the indication for testing and any relevant clinical history.

Specialty Considerations

Hematology specialists should ensure comprehensive documentation of test results.

ICD-10 Impact

Diagnostic & Documentation Impact

Enhanced Specificity

ICD-10 Improvements

The transition to ICD-10 has allowed for more specific coding of coagulation disorders, including APCR, which enhances the ability to track and manage these conditions effectively.

ICD-9 vs ICD-10

The transition to ICD-10 has allowed for more specific coding of coagulation disorders, including APCR, which enhances the ability to track and manage these conditions effectively.

Reimbursement & Billing Impact

The transition to ICD-10 has allowed for more specific coding of coagulation disorders, including APCR, which enhances the ability to track and manage these conditions effectively.

Resources

Clinical References

  • •
    American Society of Hematology

Coding & Billing References

  • •
    American Society of Hematology

Frequently Asked Questions

What is the primary cause of activated protein C resistance?

The primary cause of activated protein C resistance is the Factor V Leiden mutation, which leads to a hypercoagulable state and increased risk of thrombosis.