ICD-10-CM Coding: Test Your Cancer Dx Coding Skills With 2 Tricky Examples

Why This Topic Matters

Cancer-related claims often require careful interpretation of diagnosis documentation, especially when a case involves surveillance, history of malignancy, or payer-specific coverage rules. Understanding the broader guidance discussed here can help coders recognize when standard index lookup is not enough and when additional documentation or policy review may be relevant.

Article Sections

1. Use All Coding Resources to Your Advantage

   Introduces the first oncology scenario and explains the need to evaluate the documentation using multiple coding resources. The section focuses on malignancy-related diagnostic coding and the role of anatomic site documentation.

2. Diagnosis: Pancreaticobiliary Cancer

   Covers the first example involving a cancer diagnosis affecting more than one anatomic area. The discussion addresses how the diagnosis is approached within ICD-10-CM terminology and neoplasm classification.

3. Don’t Discount the Power of the NCD

   Introduces the second scenario and shifts to follow-up imaging and payer coverage considerations. The section emphasizes the importance of Medicare guidance and diagnosis context for cancer surveillance encounters.

4. Diagnosis: Positron emission tomography (PET) scan performed for cancer surveillance. Patient is not actively being treated for lung malignancy.

   Covers the second example involving surveillance after cancer treatment and related diagnostic coding considerations. The discussion includes follow-up encounter coding, personal history, and coverage-related policy context.