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ICD-10 Coding for Third-Degree Heart Block(I44.2)

Complete ICD-10-CM coding and documentation guide for Third-Degree Heart Block. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Complete Heart BlockThird-Degree AV Block

Related ICD-10 Code Ranges

Complete code families applicable to Third-Degree Heart Block

I44-I45Primary Range

Conduction disorders

This range includes all types of heart block, with I44.2 specifically for complete heart block.

Key Information: ICD-10 code for third-degree heart block

Essential facts and insights about Third-Degree Heart Block

The ICD-10 code for third-degree heart block is I44.2, indicating complete atrioventricular block.

Primary ICD-10-CM Code for third degree heart block

Atrioventricular block, complete
Billable Code

Decision Criteria

clinical Criteria

  • ECG shows complete AV dissociation with independent atrial and ventricular rates.

documentation Criteria

  • Document symptoms such as syncope or bradycardia.

Applicable To

  • Third-degree AV block
  • Complete heart block

Excludes

  • Second-degree AV block (I44.1)
  • Unspecified AV block (I44.3)

Clinical Validation Requirements

  • ECG showing complete AV dissociation
  • Ventricular rate <50 bpm
  • No conducted P waves

Code-Specific Risks

  • Confusion with second-degree AV block
  • Misinterpretation of ECG findings

Coding Notes

  • Ensure ECG findings are documented to support the diagnosis of complete heart block.

Ancillary Codes

Additional codes that should be used in conjunction with the main diagnosis codes when applicable.

Presence of other cardiac functional implants

Z95.8
Use when documenting the presence of a pacemaker or other cardiac device.

Differential Codes

Alternative codes to consider when ruling out similar conditions to the primary diagnosis.

Second-degree atrioventricular block

I44.1
Use when there is intermittent conduction between atria and ventricles.

Unspecified atrioventricular block

I44.3
Use only when the degree of block cannot be determined.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Third-Degree Heart Block to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code I44.2.

Impact

Clinical: May lead to inappropriate management decisions., Regulatory: Non-compliance with documentation standards., Financial: Potential for claim denials due to insufficient documentation.

Mitigation Strategy

Ensure all symptoms are documented in the patient's record., Use templates to guide comprehensive documentation.

Impact

Reimbursement: Incorrect coding may lead to denied claims., Compliance: Non-compliance with coding guidelines., Data Quality: Inaccurate clinical data reporting.

Mitigation Strategy

Ensure documentation specifies 'complete' or 'third-degree' block.

Impact

Lack of detailed ECG findings can lead to audit issues.

Mitigation Strategy

Implement documentation templates and regular training for staff.

Documentation errors, coding pitfalls, and audit risks are interconnected aspects of medical coding and billing. Addressing all three areas helps ensure accurate coding, optimal reimbursement, and regulatory compliance.

Frequently Asked Questions

Common questions about ICD-10 coding for Third-Degree Heart Block, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Third-Degree Heart Block

Use these documentation templates to ensure complete and accurate documentation for Third-Degree Heart Block. These templates include all required elements for proper coding and billing.

Emergency Department Visit for Syncope

Specialty: Cardiology

Required Elements

  • Chief complaint
  • History of present illness
  • ECG findings
  • Assessment and plan

Example Documentation

[Chief Complaint]: Syncope [History]: Sudden LOC ×1, no prodrome. PMH: CAD s/p PCI (Z95.5) [ECG Findings]: - Atrial rate: 88 bpm (regular) - Ventricular rate: 38 bpm (regular) - No association between P waves/QRS complexes - QRS duration: 140ms (ventricular escape) [Impression]: Symptomatic third-degree AV block (I44.2) secondary to ischemic cardiomyopathy (I25.5) [Plan]: Emergent transvenous pacing, cardiology consult

Examples: Poor vs. Good Documentation

Poor Documentation Example
Heart block noted on ECG.
Good Documentation Example
Third-degree AV block: P waves (80 bpm) dissociated from QRS complexes (35 bpm), junctional escape rhythm, syncopal episode.
Explanation
The good example provides specific ECG findings and clinical symptoms, supporting the diagnosis.

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