Don’t use the Neoplasm Table with Neuroendocrine Tumors (NET)

Don’t use the Neoplasm Table with Neuroendocrine Tumors (NET)

Previously neuroendocrine tumors (NETs) were called carcinoid tumors and some clinicians will continue to call them carcinoid tumors.  This is a physician query opportunity.

They are not universally consistent in their characteristics. Some neuroendocrine cancer grows quickly while others grow slowly. Most of these tumors develop in the lungs, appendix, small intestine, rectum, testicles, ovaries, and pancreas, but and essentially, can be found anywhere. Some tumors can produce hormones, while others don’t.  Symptoms may vary depending on the part of the body affected by the tumor.[i] They are comprised of cells that may produce hormonal syndromes which impact the normal hormonal balance that supports body system functions.

NETs can be malignant or benign.  Unfortunately, the clinical documentation we see as coders, does not always clearly specify malignant or benign.  So, here’s another physician query opportunity!  If the documentation does not specify the NET as malignant or benign, the default is benign.  This path to benign is per the indexing of tumor, neuroendocrine:  D3A.8-Other benign carcinoid tumors

Often this neuroendocrine tumor is abbreviated in the documentation.  Look for NET or other abbreviations such as PNET or PanNET for pancreatic NET, GINET for gastrointestinal NET, and WDNET or PD NET for well-differentiated or poorly-differentiated neuroendocrine tumor.

IMPORTANT:  Neuroendocrine tumors have their own set of codes. They are not coded from the neoplasm table codes. I can’t explain the logic for not including them in the table!

  • Category D3A.00-D3A.8 are Benign carcinoid tumors of specific sites and includes a code for unspecified site
  • Category C7A.00-C7A.098-Malignant Carcinoids by site
  • Category C7B.00-C7B.09-Secondary Carcinoid Tumors by site
  • Category C7A.1-Malignant poorly differentiated neuroendocrine tumors (Any Primary site); Includes High Grade
  • Category C7A.8-Other malignant neuroendocrine tumors (Any Primary site)
  • Category C7B.1-Secondary Merkel cell carcinoma (NOTE: Do not use secondary codes from the neoplasm table) Primary Merkel cell is category C4A
  • Category C7B.8-Other secondary neuroendocrine tumors. (NOTE:  Do not use secondary codes from the neoplasm table)

These tumors arise from epithelium; thus, malignant tumors in this group are referred to as neuroendocrine carcinomas.[ii]  NETs can spread to the bones, brain, lungs, and other locations. The type and location of the cancer influences the treatments.  Treatment may include surgery, radiation, targeted therapy, or a combination of these treatment techniques. Finally, many of the tumors in the categories above yield an HCC and some a RxHCC.

If you remember one thing about NETs, it’s to NOT use the neoplasm table.  Coders and clinical documentation integrity specialists play a vital role in accurately capture the documentation needed to apply a specific code for NETs and help future clinicians prepare an appropriate care plan for the patient.

About the Author:  Pam Scott is Vice President of Coding Support and Compliance Services at St. Louis-based First Class Solutions, Inc.  She is the firm’s educator, a frequent speaker at State HIM meetings, and serves as a coding compliance auditor for several of the firm’s clients.


https://www.sayyestohope.org/neuroendocrin/#:~:text=In%20the%20later%20stages%20of,%2C%20difficulty%20breathing%2C%20and%20diarrhea.

https://librepathology.org/wiki/Neuroendocrine_neoplasms

Facebook
Twitter
LinkedIn

Pamela Scott, RHIT, CCS, CCDS, CRC, AHIMA-Approved ICD-10 CM/PCS Trainer

Pam provides coding support and coding compliance services for our clients. She has served as a coding mentor to many of our clients’ coders and especially those new to the coding field. Our clients often compliment her on her caring attitude and quality of her work. Certified in risk-adjustment coding (HCCs), Pam has participated in governmental audits of Medicare Advantage plans and can assist clients in understanding the nuances of this coding system

Related Stories

Leave a Reply

Please log in to your account to comment on this article.

Featured Webcasts

Sepsis Sequencing in Focus: From Documentation to Defensible Coding

Sepsis sequencing continues to challenge even experienced coding and CDI professionals, with evolving guidelines, documentation gaps, and payer scrutiny driving denials and data inconsistencies. In this webcast, Payal Sinha, MBA, RHIA, CCDS, CDIP, CCS, CCS-P, CCDS-O, CRC, CRCR, provides clear guideline-based strategies to accurately code sepsis, severe sepsis, and septic shock, assign POA indicators, clarify the relationship between infection and organ dysfunction, and align documentation across teams. Attendees will gain practical tools to strengthen audit defensibility, improve first-pass accuracy, support appeal success, reduce denials, and ensure accurate quality reporting, empowering organizations to achieve consistent, compliant sepsis coding outcomes.

March 26, 2026
I022426_SQUARE

Fracture Care Coding: Reduce Denials Through Accurate Coding, Sequencing, and Modifier Use

Expert presenters Kathy Pride, RHIT, CPC, CCS-P, CPMA, and Brandi Russell, RHIA, CCS, COC, CPMA, break down complex fracture care coding rules, walk through correct modifier application (-25, -57, 54, 55), and clarify sequencing for initial and subsequent encounters. Attendees will gain the practical knowledge needed to submit clean claims, ensure compliance, and stay one step ahead of payer audits in 2026.

February 24, 2026
Mastering Principal Diagnosis: Coding Precision, Medical Necessity, and Quality Impact

Mastering Principal Diagnosis: Coding Precision, Medical Necessity, and Quality Impact

Accurately determining the principal diagnosis is critical for compliant billing, appropriate reimbursement, and valid quality reporting — yet it remains one of the most subjective and error-prone areas in inpatient coding. In this expert-led session, Cheryl Ericson, RN, MS, CCDS, CDIP, demystifies the complexities of principal diagnosis assignment, bridging the gap between coding rules and clinical reality. Learn how to strengthen your organization’s coding accuracy, reduce denials, and ensure your documentation supports true medical necessity.

December 3, 2025

Proactive Denial Management: Data-Driven Strategies to Prevent Revenue Loss

Denials continue to delay reimbursement, increase administrative burden, and threaten financial stability across healthcare organizations. This essential webcast tackles the root causes—rising payer scrutiny, fragmented workflows, inconsistent documentation, and underused analytics—and offers proven, data-driven strategies to prevent and overturn denials. Attendees will gain practical tools to strengthen documentation and coding accuracy, engage clinicians effectively, and leverage predictive analytics and AI to identify risks before they impact revenue. Through real-world case examples and actionable guidance, this session empowers coding, CDI, and revenue cycle professionals to shift from reactive appeals to proactive denial prevention and revenue protection.

November 25, 2025

Trending News

Featured Webcasts

Compliance for the Inpatient Psychiatric Facility (IPF-PPS): Minimizing Federal Audit Findings by Strengthening Best Practices

Federal auditors are intensifying their focus on inpatient psychiatric facilities, using advanced data analytics to spotlight outliers and pursue high‑dollar repayments. In this high‑impact webcast, Michael Calahan, PA, MBA, Compliance Officer and V.P., Hospital & Physician Compliance, breaks down what regulators are really targeting in IPF-PPS admissions, documentation, treatment and discharge planning. Attendees will learn practical steps to tighten processes, avoid common audit triggers and protect reimbursement and reduce the risk of multimillion-dollar repayment demands.

April 9, 2026

Mastering MDM for Accurate Professional Fee Coding

In this timely session, Stacey Shillito, CDIP, CPMA, CCS, CCS-P, CPEDC, COPC, breaks down the complexities of Medical Decision Making (MDM) documentation so providers can confidently capture the true complexity of their care. Attendees will learn practical, efficient strategies to ensure documentation aligns with current E/M guidelines, supports accurate coding, and reduces audit risk, all without adding to charting time.

March 31, 2026

The PEPPER Returns – Risk and Opportunity at Your Fingertips

Join Ronald Hirsch, MD, FACP, CHCQM for The PEPPER Returns – Risk and Opportunity at Your Fingertips, a practical webcast that demystifies the PEPPER and shows you how to turn complex claims data into actionable insights. Dr. Hirsch will explain how to interpret key measures, identify compliance risks, uncover missed revenue opportunities, and understand new updates in the PEPPER, all to help your organization stay ahead of audits and use this powerful data proactively.

March 19, 2026

Top 10 Audit Targets for 2026-2027 for Hospitals & Physicians: Protect Your Revenue

Stay ahead of the 2026-2027 audit surge with “Top 10 Audit Targets for 2026-2027 for Hospitals & Physicians: Protect Your Revenue,” a high-impact webcast led by Michael Calahan, PA, MBA. This concise session gives hospitals and physicians clear insight into the most likely federal audit targets, such as E/M services, split/shared and critical care, observation and admissions, device credits, and Two-Midnight Rule changes, and shows how to tighten documentation, coding, and internal processes to reduce denials, recoupments, and penalties. Attendees walk away with practical best practices to protect revenue, strengthen compliance, and better prepare their teams for inevitable audits.

January 29, 2026

Trending News

Prepare for the 2025 CMS IPPS Final Rule with ICD10monitor’s IPPSPalooza! Click HERE to learn more

Get 15% OFF on all educational webcasts at ICD10monitor with code JULYFOURTH24 until July 4, 2024—start learning today!

CYBER WEEK IS HERE! Don’t miss your chance to get 20% off now until Dec. 1 with code CYBER25

CYBER WEEK IS HERE! Don’t miss your chance to get 20% off now until Dec. 2 with code CYBER24