ICD-10 Guide

Polysubstance Abuse

ICD-10 Coding for Polysubstance Abuse(F19.10, F19.20)

PRIMARY SPECIALTYAddiction Medicine

COMPLEXITYHigh

LAST UPDATED09/15/2025

Sam Tuffun, PT, DPT

Physical Therapist | Medical Coding & Billing Contributor

Diagnosis Overview

What is Polysubstance Abuse?

Essential facts and insights about Polysubstance Abuse

Key Clinical Considerations:

Presence of multiple substance use disorders
Withdrawal symptoms from multiple substances
Increased tolerance to multiple substances

Clinical Information

Clinical Criteria & Documentation Requirements

Patient history of substance use and abuse
Details of substances used, frequency, and duration
Evidence of impairment in social, occupational, or other areas of functioning

Coding Guidelines

Usage Guidelines & Examples

Use F19 codes for polysubstance abuse; avoid using single substance codes.
Common errors include misclassifying the primary substance of abuse.

Code Exclusions

Important Exclusions

Single substance use disorders (e.g., alcohol use disorder)
Conditions related to substance-induced disorders

Specialty Focus

Primary Specialty

Addiction Medicine

Specialty Applications

Adults and adolescents with substance use disorders
Inpatient and outpatient addiction treatment settings

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

What are the documentation requirements?

Document all substances used, duration, and impact on functioning.

What are the billing considerations?

Ensure accurate coding to reflect the complexity of polysubstance abuse.

Polysubstance Abuse

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

What are the documentation requirements?

What are the billing considerations?

Polysubstance Abuse

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

What are the documentation requirements?

What are the billing considerations?