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v1.0.0
ICD-10 Guide
DiagnosesAbnormal Coagulation Profile

Abnormal Coagulation Profile

ICD-10 Coding for Abnormal Coagulation Profile(R79.1, D68.9, Z79.01)

PRIMARY SPECIALTYHematology
COMPLEXITYHigh
LAST UPDATED09/15/2025
Sam Tuffun, PT, DPT
Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Abnormal Coagulation Profile?
Essential facts and insights about Abnormal Coagulation Profile

Key Clinical Considerations:

  • Presence of prolonged clotting times in laboratory tests
  • Evidence of bleeding disorders such as hemophilia or von Willebrand disease
  • Abnormal platelet function or count
  • Presence of disseminated intravascular coagulation (DIC)

Clinical Information

Clinical Criteria & Documentation Requirements

  • Detailed description of the patient's symptoms and clinical findings
  • Specific laboratory test results indicating abnormal coagulation
  • Documentation of any underlying conditions causing the abnormal coagulation
  • Treatment plan and response to treatment

Coding Guidelines

Usage Guidelines & Examples

  • R79.1 is used for abnormal coagulation profile in general, while D68.9 is for coagulation defects, unspecified
  • Z79.01 is used when the patient is on long-term anticoagulants, which may affect the coagulation profile

Code Exclusions

Important Exclusions

  • Coagulation defects due to vitamin K deficiency (E56.1)
  • Coagulation defects due to liver disease (K72.-)

Related ICD-10 Codes

Primary Codes
R79.1
Abnormal Coagulation Profile
D68.9
Coagulation Defect, Unspecified
Z79.01
Long term (current) use of anticoagulants
Ancillary Codes
Z79.01
R79.1
when anticoagulant therapy affects coagulation.
Differential Codes
D68.9
R79.1
R79.1
when there is no confirmed diagnosis of a bleeding or clotting disorder.

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Hematology

Specialty Applications

  • Patients with bleeding disorders such as hemophilia or von Willebrand disease
  • Patients with liver diseases which can affect coagulation
  • Patients on long-term anticoagulant therapy

Coding Complexity

High Complexity

This diagnosis requires careful attention to:

  • Comprehensive clinical documentation
  • Accurate code selection based on clinical criteria
  • Proper exclusion considerations
  • Specialty-specific coding guidelines

Documentation

Documentation Templates

Template 1

Patient presents with symptoms consistent with a coagulation disorder. Laboratory tests confirm abnormal coagulation profile.

Template 2

Patient on long-term anticoagulant therapy presents with abnormal coagulation profile.

Billing Information

Billing Considerations

  • Ensure proper documentation for billing
  • Verify code specificity requirements
  • Check for any additional codes needed
  • Review payer-specific guidelines

Common Issues

  • Insufficient clinical documentation
  • Incorrect code selection
  • Missing supporting diagnoses
  • Timing and frequency documentation

Frequently Asked Questions

Can this code be used for patients on anticoagulant therapy?

Yes, Z79.01 is specifically for patients on long-term anticoagulant therapy.

When should this code be used?

This code should be used when the patient's coagulation profile is abnormal due to a specific condition or long-term medication use.