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ICD-10 Coding for Gastric Cancer(C16.0, C16.1)

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

Also known as:

Stomach CancerGastric Carcinoma

Related ICD-10 Code Ranges

Complete code families applicable to Gastric Cancer

C16.0-C16.9Primary Range

Malignant neoplasm of stomach

This range covers all primary gastric cancer sites, including specific anatomical locations within the stomach.

Gastric intestinal metaplasia

These codes are used for documenting precancerous lesions that may precede gastric cancer.

Neoplasm of uncertain behavior of stomach

Used when malignancy is suspected but not confirmed.

Code Comparison: When to Use Each Code

Compare key differences between these codes to ensure accurate selection

CodeDescriptionWhen to UseKey Documentation
C16.0Malignant neoplasm of cardiaUse when the tumor is located at the gastroesophageal junction involving the cardia.
  • Biopsy confirming malignancy in the cardia region
C16.1Malignant neoplasm of fundus of stomachUse when the tumor is located in the fundus of the stomach.
  • Endoscopic findings and biopsy confirming malignancy in the fundus

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 gastric cancer

Essential facts and insights about Gastric Cancer

The ICD-10 code for gastric cancer depends on the tumor's location, such as C16.0 for cardia.

Primary ICD-10-CM Codes for gastric cancer

Malignant neoplasm of cardia
Billable Code

Decision Criteria

clinical Criteria

  • Tumor located at the gastroesophageal junction

Applicable To

  • Cancer of the gastric cardia

Excludes

  • Esophageal cancer

Clinical Validation Requirements

  • Biopsy confirming malignancy in the cardia region

Code-Specific Risks

  • Misclassification if tumor extends beyond cardia without proper documentation

Coding Notes

  • Ensure documentation specifies the exact location of the tumor for accurate coding.

Ancillary Codes

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

Encounter for antineoplastic chemotherapy

Z51.11
Use when the patient is receiving chemotherapy for gastric cancer.

Differential Codes

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

Malignant neoplasm of lower third of esophagus

C15.5
Use C15.5 if the tumor is primarily in the esophagus rather than the cardia.

Malignant neoplasm of cardia

C16.0
Use C16.0 if the tumor is primarily in the cardia.

Documentation & Coding Risks

Avoid these common documentation and coding issues when documenting Gastric Cancer to ensure proper reimbursement, maintain compliance, and reduce audit risk. These guidelines are particularly important when using ICD-10 code C16.0.

Impact

Clinical: Impacts treatment decisions due to lack of specificity., Regulatory: Non-compliance with coding specificity requirements., Financial: Potential for reduced reimbursement.

Mitigation Strategy

Train staff on importance of specifying tumor location.

Impact

Reimbursement: May lead to lower reimbursement due to lack of specificity., Compliance: Non-compliance with coding guidelines requiring specificity., Data Quality: Reduces data quality and accuracy in cancer registries.

Mitigation Strategy

Ensure documentation specifies the exact anatomical location of the tumor.

Impact

High risk of audit if tumor location is not documented.

Mitigation Strategy

Ensure all reports specify tumor location.

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

Documentation Templates for Gastric Cancer

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

Partial gastrectomy for gastric cancer

Specialty: Surgery

Required Elements

  • Specimen description
  • Tumor size and location
  • Lymph node involvement

Example Documentation

Distal gastrectomy specimen shows a 3.2 cm ulcerated adenocarcinoma at the angular incisure.

Examples: Poor vs. Good Documentation

Poor Documentation Example
Stomach cancer removed.
Good Documentation Example
Distal gastrectomy with 3.2 cm adenocarcinoma at angular incisure, negative margins.
Explanation
The good example provides specific tumor details and margin status.

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

Ask about any ICD-10 CM code, or paste a medical note

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