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v1.0.0
ICD-10 Guide
DiagnosesEmphysematous Cystitis

Emphysematous Cystitis

ICD-10 Coding for Emphysematous Cystitis(N30.81, N30.80)

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

Diagnosis Overview

What is Emphysematous Cystitis?
Essential facts and insights about Emphysematous Cystitis

Key Clinical Considerations:

  • Hematuria, dysuria, and suprapubic pain
  • CT scan showing gas within the bladder wall
  • Tenderness in the suprapubic area, possible fever

Clinical Information

Clinical Criteria & Documentation Requirements

  • Patient history including symptoms and duration
  • Use of terms like 'emphysematous cystitis' and 'gas-forming infection'
  • Example: 'Patient presents with hematuria and CT shows gas in bladder wall.'

Coding Guidelines

Usage Guidelines & Examples

  • Usage guidelines: Use specific codes for emphysematous cystitis to avoid denials.
  • Common errors: Misclassifying as simple cystitis or failing to document gas presence.

Code Exclusions

Important Exclusions

  • Non-emphysematous cystitis, bladder tumors
  • Alternative codes: N30.0 (Acute cystitis) should not be used for emphysematous cases.

Related ICD-10 Codes

Primary Codes
N30.9
Cystitis, unspecified
N30.81
Emphysematous cystitis
Ancillary Codes
B96.20
E11.9
Differential Codes
N30.9

Related CPT Codes

CPT codes will be available in a future update.

Specialty Focus

Primary Specialty

Emergency Medicine

Specialty Applications

  • Diabetic patients, immunocompromised individuals
  • Emergency departments, urgent care 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

Documentation requirements?

Include detailed patient history, imaging results, and clinical findings.

Billing considerations?

Ensure accurate coding to reflect severity and complexity for reimbursement.