ICD-10 Guide

Low Platelet

ICD-10 Coding for Low Platelet Count(D69.6, D69.3, D69.5)

PRIMARY SPECIALTYHematology

COMPLEXITYHigh

LAST UPDATED09/15/2025

Sam Tuffun, PT, DPT

Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Low Platelet?

Essential facts and insights about Low Platelet Count

Key Clinical Considerations:

Easy bruising or bleeding
Thrombocytopenia confirmed by complete blood count (CBC)
Signs of petechiae or purpura on skin examination

Clinical Information

Clinical Criteria & Documentation Requirements

Patient history of bleeding disorders
Results of platelet count and peripheral blood smear
Documentation of any underlying conditions contributing to low platelet count

Coding Guidelines

Usage Guidelines & Examples

Use D69.6 for unspecified cases; D69.5 for cases with known causes.
Common errors include misclassifying the type of thrombocytopenia.

Code Exclusions

Important Exclusions

Excludes conditions like thrombocytopenic purpura and bone marrow disorders.
Alternative codes may include those for specific causes of thrombocytopenia.

Specialty Focus

Primary Specialty

Hematology

Specialty Applications

Patients with hematological disorders, autoimmune diseases, or those undergoing chemotherapy.
Clinical settings include outpatient hematology clinics and inpatient care.

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

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

Documentation requirements?

Include detailed patient history, lab results, and any treatments administered.

Billing considerations?

Ensure accurate coding to reflect the underlying cause of thrombocytopenia for proper reimbursement.

Low Platelet

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

Documentation requirements?

Billing considerations?

Low Platelet

Diagnosis Overview

Key Clinical Considerations:

Clinical Information

Clinical Criteria & Documentation Requirements

Coding Guidelines

Usage Guidelines & Examples

Code Exclusions

Important Exclusions

Related ICD-10 Codes

Related CPT Codes

Specialty Focus

Primary Specialty

Specialty Applications

Coding Complexity

Documentation

Documentation Templates

Billing Information

Billing Considerations

Common Issues

Frequently Asked Questions

Documentation requirements?

Billing considerations?