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v1.0.0
ICD-10 Guide
DiagnosesMultiple Organ Failure

Multiple Organ Failure

ICD-10 Coding for Multiple Organ Failure(R65.20, R65.21)

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

Diagnosis Overview

What is Multiple Organ Failure?
Essential facts and insights about Multiple Organ Failure

Key Clinical Considerations:

  • Signs of shock, altered mental status, and respiratory distress
  • Elevated lactate levels, abnormal liver function tests, and renal impairment
  • Hypotension, tachycardia, and decreased urine output

Clinical Information

Clinical Criteria & Documentation Requirements

  • Detailed patient history, including onset and progression of symptoms
  • Use of terms like 'septic shock', 'acute respiratory distress syndrome', and 'acute kidney injury'
  • Examples include: 'Patient presents with multi-organ dysfunction syndrome due to sepsis.'

Coding Guidelines

Usage Guidelines & Examples

  • Follow guidelines for coding severity and specificity of organ failure.
  • Common errors include undercoding or failing to document all affected systems.

Code Exclusions

Important Exclusions

  • Chronic organ failure, isolated organ failure
  • Codes for specific organ failures (e.g., acute renal failure) should not be used alone.

Related ICD-10 Codes

Primary Codes
R65.2
Multiple organ failure
Ancillary Codes
J96.00
N17.9
Differential Codes
R65.21
R65.20

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Critical Care

Specialty Applications

  • Critically ill patients, especially those with sepsis or trauma
  • ICU settings and emergency departments

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 organ systems involved and their respective dysfunction.

What are the billing considerations?

Ensure accurate coding of all contributing conditions to support the diagnosis.