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Official Description

Meat fibers, feces

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 89160 refers to a laboratory procedure specifically designed to identify the presence of meat fibers in feces. This test is significant as the detection of undigested meat fibers can provide valuable insights into various gastrointestinal conditions. For instance, the presence of these fibers may suggest issues such as pancreatitis, which is inflammation of the pancreas, pancreatic exocrine insufficiency, a condition where the pancreas does not produce enough digestive enzymes, or inadequate amounts of stomach acids that are necessary for proper digestion. The procedure involves obtaining a stool sample, which is a critical step and is performed as a separately reportable procedure. Once the sample is collected, a smear of the fecal matter is prepared and placed on a glass slide. This slide may undergo staining to enhance the visibility of the meat fibers. Finally, the prepared slide is examined under a light microscope, allowing for the identification and analysis of the meat fibers present in the sample. This laboratory test plays a crucial role in diagnosing and understanding underlying digestive health issues.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 89160 is indicated for the evaluation of gastrointestinal health, particularly when there are concerns regarding the digestion of food. The following conditions may warrant this laboratory test:

  • Pancreatitis The presence of undigested meat fibers may indicate inflammation of the pancreas, which can affect its ability to produce digestive enzymes.
  • Pancreatic Exocrine Insufficiency This condition occurs when the pancreas fails to secrete sufficient digestive enzymes, leading to malabsorption of nutrients, including proteins from meat.
  • Inadequate Stomach Acids Insufficient stomach acid can hinder the digestion of proteins, resulting in undigested meat fibers being excreted in the feces.

2. Procedure

The procedure for CPT® Code 89160 involves several key steps to ensure accurate identification of meat fibers in feces. First, a stool sample is obtained from the patient. This sample collection is crucial and must be performed as a separately reportable procedure to ensure proper documentation and billing. Once the stool sample is collected, a small amount of the fecal matter is smeared onto a glass slide. This smear is prepared carefully to ensure that the sample is thin enough for examination. In some cases, the smear may be stained using specific dyes to enhance the visibility of the meat fibers. After preparation, the slide is examined under a light microscope. The microscopic examination allows the laboratory technician or pathologist to identify and analyze the presence of undigested meat fibers, which can provide important diagnostic information regarding the patient's digestive health.

3. Post-Procedure

After the procedure associated with CPT® Code 89160, the laboratory will analyze the slide and report the findings. The results will indicate whether meat fibers were present in the fecal sample, which can assist healthcare providers in diagnosing potential gastrointestinal issues. Depending on the findings, further diagnostic testing or treatment may be recommended. It is important for healthcare providers to discuss the results with the patient and consider any necessary follow-up actions based on the presence of undigested meat fibers and the clinical context of the patient's health.

Short Descr EXAM FECES FOR MEAT FIBERS
Medium Descr MEAT FIBERS FECES
Long Descr Meat fibers, feces
Status Code Statutory Exclusion (from MPFS, may be paid under other methodologies)
Global Days XXX - Global Concept Does Not Apply
PC/TC Indicator (26, TC) 9 - Not Applicable
Multiple Procedures (51) 9 - Concept does not apply.
Bilateral Surgery (50) 9 - Concept does not apply.
Physician Supervisions 09 - Concept does not apply.
Assistant Surgeon (80, 82) 9 - Concept does not apply.
Co-Surgeons (62) 9 - Concept does not apply.
Team Surgery (66) 9 - Concept does not apply.
Diagnostic Imaging Family 99 - Concept Does Not Apply
CLIA Waived (QW) No
APC Status Indicator Conditionally packaged laboratory tests
Type of Service (TOS) 5 - Diagnostic Laboratory
Berenson-Eggers TOS (BETOS) T1H - Lab tests - other (non-Medicare fee schedule)
MUE 1
CCS Clinical Classification 206 - Microscopic examination (bacterial smear, culture, toxicology)
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
90 Reference (outside) laboratory: when laboratory procedures are performed by a party other than the treating or reporting physician or other qualified health care professional, the procedure may be identified by adding modifier 90 to the usual procedure number.
GY Item or service statutorily excluded, does not meet the definition of any medicare benefit or, for non-medicare insurers, is not a contract benefit
Date
Action
Notes
Pre-1990 Added Code added.
Code
Description
Code
Description
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