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ICD-10 Coding for Cancer of Larynx(C32.0, C32.1, C32.9)

Complete ICD-10-CM coding and documentation guide for Cancer of Larynx. Includes clinical validation requirements, documentation requirements, and coding pitfalls.

Also known as:

Laryngeal CancerThroat Cancer

Related ICD-10 Code Ranges

Complete code families applicable to Cancer of Larynx

C32.0-C32.9Primary Range

Malignant neoplasm of larynx

This range includes all site-specific codes for laryngeal cancer, covering subsites such as glottis, supraglottis, and subglottis.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
C32.0Malignant neoplasm of glottisUse when the tumor is confirmed to be in the glottis with specific documentation.
  • Biopsy confirming squamous cell carcinoma
  • Imaging showing tumor localized to glottis
C32.1Malignant neoplasm of supraglottisUse when the tumor is confirmed to be in the supraglottis with specific documentation.
  • Biopsy confirming carcinoma in supraglottis
  • Imaging showing tumor in supraglottic region
C32.9Malignant neoplasm of larynx, unspecifiedUse only when the specific subsite of the larynx cannot be determined.
  • Lack of specific site documentation after exhaustive workup

Clinical Decision Support

Always review the patient's clinical documentation thoroughly. When in doubt, choose the more specific code and ensure documentation supports it.

Key Information: ICD-10 code for cancer of larynx

Essential facts and insights about Cancer of Larynx

The ICD-10 code for cancer of the larynx varies by site: C32.0 for glottis, C32.1 for supraglottis, and C32.9 for unspecified sites.

Primary ICD-10-CM Codes for cancer of larynx

Malignant neoplasm of glottis
Billable Code

Decision Criteria

clinical Criteria

  • Biopsy confirms squamous cell carcinoma in the glottis.

Applicable To

  • Cancer of true vocal cords
  • Cancer of anterior commissure

Excludes

  • Benign neoplasm of glottis

Clinical Validation Requirements

  • Biopsy confirming squamous cell carcinoma
  • Imaging showing tumor localized to glottis

Code-Specific Risks

  • Risk of using C32.9 if subsite is known

Coding Notes

  • Ensure laterality is documented if applicable.

Ancillary Codes

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

Alcohol abuse/dependence

F10.-
Use if there is documented alcohol abuse or dependence.

Personal history of tobacco use

Z87.891
Use if there is a documented history of tobacco use.

Tobacco use

Z72.0
Use if there is documented current tobacco use.

Differential Codes

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

Malignant neoplasm of vallecula

C10.0
Use C10.0 if the tumor is located in the vallecula, not the glottis.

Malignant neoplasm of anterior wall of oropharynx

C10.1
Use C10.1 if the tumor is located in the anterior wall of the oropharynx, not the supraglottis.

Malignant neoplasm of glottis

C32.0
Use C32.0 if the tumor is confirmed in the glottis.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Cancer of Larynx to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code C32.0.

Impact

Clinical: May affect treatment planning and outcomes., Regulatory: Increases risk of audit and compliance issues., Financial: Potential for claim denials or reduced reimbursement.

Mitigation Strategy

Always document laterality when known, Use templates that prompt for laterality

Impact

Reimbursement: May lead to claim denials or reduced reimbursement., Compliance: Increases risk of audit due to improper coding., Data Quality: Decreases accuracy of clinical data.

Mitigation Strategy

Use the specific site code (e.g., C32.0 for glottis) when documentation supports it.

Impact

Frequent use of C32.9 without documentation of exhaustive workup.

Mitigation Strategy

Ensure documentation supports the use of unspecified codes only when necessary.

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 Cancer of Larynx, with expert answers to help guide accurate code selection and documentation.

Documentation Templates for Cancer of Larynx

Use these documentation templates to ensure complete and accurate documentation for Cancer of Larynx. These templates include all required elements for proper coding and billing.

Laryngeal cancer diagnosis

Specialty: Otolaryngology

Required Elements

  • Tumor location
  • Laterality
  • Histology
  • TNM staging
  • Risk factors

Example Documentation

Tumor Location: Glottis, Laterality: Left, Histology: SCC, TNM Staging: T2N0M0, Risk Factors: 40 pack-years smoking history.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Laryngeal cancer
Good Documentation Example
Stage III p16-negative SCC of left glottis (T3N1M0), smoking history 40 pack-years
Explanation
The good example provides specific site, laterality, histology, and staging, improving coding accuracy.

Need help with ICD-10 coding for Cancer of Larynx? Ask your questions below.

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