Title: The Gastrointestinal and Hepatobiliary Systems
Course: Intermediate Coding and Classification Systems > Section: Module 8: The Gastrointestinal and Hepatobiliary Systems

Introduction

Let’s now cover Chapters 12 and 13. You will learn about the Gastrointestinal and Hepatobiliary systems (CH 12) and the Endocrine and Lymphatic systems (CH 13). Review the atomy and components of the digestive system and know which are included in the ICD-10-PCS. The body parts designated in ICD-10-CM is listed on Table 12.2 in your text book. As you know, the stomach is the large digestive organ located in the thorax where digestion takes place.

The peritoneum is a double-layered covering of the intraperitoneal organs that forms the mesentery that suspends organs form the abdominal wall. In regards to the Endocrine system, the carotid body is not part of the carotid artery. It is a small epitheloid structure located just above the bifurcation of the common carotid artery on each side.

The term Hepatobiliary refers to the liver and bile ducts. Common root operations used to code procedures of the gastrointestinal system are:

Refer to Table 12.1 for full values of root operations.

- Dilation, Occlusion and Restriction
- Transplantation
- Bypass
- Excision
- Release
- Inspection

The root operation of Dilatation is coded when the objective of the procedure is to enlarge the diameter of a tubular body part or orifice and includes both intraluminal and extraluminal methods. A device placed to keep the diameter open in a body part will use a 6th character device value.

Coding Guideline: Bypass procedures are coded by identifying the body part bypassed “from” and the body part bypassed “to”.

Course Outcomes

- Describes the basic coding steps for coding medical procedures in both ICD-9-CM and ICD-10-PCS. (1)
- Interprets the basic coding guidelines established by the American Hospital Association for both ICD-9-CM and ICD-10-PCS. (2)
- Converts medical documentation into both ICD-9-CM and ICD-10-PCS codes. (3)
- Applies the official coding guidelines to the coding of medical procedures for all body systems (circulatory, respiratory, musculoskeletal, urinary, blood organs, reproductive, gastrointestinal, etc.) (4)
- Compares and contrasts the differences between the ICD-9-CM and ICD-10-PCS classification systems. (8)

Objectives

Upon completion of this module you should be able to:

- List the basic functions and organization of the gastrointestinal and hepatobiliary systems.
- Review the anatomy of the gastrointestinal and hepatobiliary systems.
- Discuss the common root operations used in the gastrointestinal and hepatobiliary systems.
- Describe the body part values available in the gastrointestinal and hepatobiliary systems including the general body part values for upper and lower intestinal tract for selected root operations.
- Review the procedure used to locate values for body parts that do not have their own body part values.
- List the six applicable approaches used in the gastrointestinal and hepatobiliary systems.
- Describe the device values common to the circulatory system gastrointestinal and hepatobiliary systems.
- Discuss the use of qualifier values for procedures in gastrointestinal and hepatobiliary systems.
- List the basic functions and organization of the endocrine and lymphatic systems.
- Review the anatomy of the endocrine and lymphatic systems.
- Describe some of the hormone-secreting organs that are found outside the endocrine body system.
- Discuss the common root operations used in the endocrine and lymphatic systems.
- Identify the difference between the endocrine and lymphatic systems, in that the lymphatic system has tubular body parts while the endocrine system does not.
- Describe the body part values available in the endocrine and lymphatic systems including the general body part values for lymph and bone marrow for selected root operations.
- Review the procedure used to locate values for body parts that do not have their own body part values.
- List the applicable approaches used in the endocrine and lymphatic systems.
- Describe the device values available in the endocrine and lymphatic systems.
- Discuss the use of qualifier values for procedures in endocrine and lymphatic systems.

Readings & Resources

- Chapters 12 and 13
- Complete all exercises and check your answers
- Review Coding Guidelines on root operations
- Read Coding Tips