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Official Description

Homogenization, tissue, for culture

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The procedure described by CPT® Code 87176 refers to the process of homogenization of tissue for the purpose of culture. This involves taking a tissue sample and grinding it into a fine consistency, which facilitates a more thorough examination. The homogenization process is crucial as it allows for the effective analysis of the tissue, making it easier to identify the presence of toxins or parasites. By breaking down the tissue into smaller, more manageable particles, laboratory professionals can enhance the accuracy of subsequent tests and cultures. This procedure is particularly important in diagnostic settings where the detection of infectious agents or harmful substances is necessary for patient care and treatment planning.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The homogenization of tissue for culture, as indicated by CPT® Code 87176, is performed under specific circumstances where detailed analysis of tissue samples is required. The following conditions may warrant this procedure:

  • Presence of Toxins The procedure is indicated when there is a suspicion of toxic substances within the tissue that need to be identified for diagnosis or treatment.
  • Detection of Parasites It is also indicated when there is a need to examine the tissue for parasitic infections, which can significantly impact patient health.
  • Diagnostic Evaluation The procedure is performed as part of a broader diagnostic evaluation to understand the underlying causes of symptoms presented by the patient.

2. Procedure

The procedure for homogenization of tissue for culture involves several key steps that ensure the sample is adequately prepared for analysis. Each step is critical to achieving reliable results.

  • Step 1: Sample Collection The first step involves the careful collection of a tissue sample from the patient. This sample must be representative of the area of interest and collected using sterile techniques to prevent contamination.
  • Step 2: Tissue Preparation Once the sample is collected, it is prepared for homogenization. This may involve rinsing the tissue to remove any surface contaminants and cutting it into smaller pieces to facilitate the grinding process.
  • Step 3: Homogenization The prepared tissue is then subjected to homogenization, where it is ground up using a homogenizer or similar device. This process breaks down the tissue into a uniform mixture, allowing for better access to the cellular components during subsequent analysis.
  • Step 4: Culture Setup After homogenization, the resulting mixture is transferred to culture media that supports the growth of potential pathogens or toxins. This step is crucial for identifying any infectious agents present in the tissue.

3. Post-Procedure

Following the homogenization procedure, the tissue culture is monitored for growth over a specified period. Laboratory personnel will observe the cultures for any signs of microbial growth or the presence of toxins. The results of these cultures are then documented and analyzed to provide insights into the patient's condition. It is essential to maintain proper laboratory protocols during this phase to ensure the accuracy and reliability of the results. Additionally, any findings from the culture will be communicated to the healthcare provider for further evaluation and management of the patient's health.

Short Descr TISSUE HOMOGENIZATION CULTR
Medium Descr HOMOGENIZATION TISSUE CULTURE
Long Descr Homogenization, tissue, for culture
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 2
CCS Clinical Classification 206 - Microscopic examination (bacterial smear, culture, toxicology)
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.
26 Professional component: certain procedures are a combination of a physician or other qualified health care professional component and a technical component. when the physician or other qualified health care professional component is reported separately, the service may be identified by adding modifier 26 to the usual procedure number.
GW Service not related to the hospice patient's terminal condition
59 Distinct procedural service: under certain circumstances, it may be necessary to indicate that a procedure or service was distinct or independent from other non-e/m services performed on the same day. modifier 59 is used to identify procedures/services, other than e/m services, that are not normally reported together, but are appropriate under the circumstances. documentation must support a different session, different procedure or surgery, different site or organ system, separate incision/excision, separate lesion, or separate injury (or area of injury in extensive injuries) not ordinarily encountered or performed on the same day by the same individual. however, when another already established modifier is appropriate it should be used rather than modifier 59. only if no more descriptive modifier is available, and the use of modifier 59 best explains the circumstances, should modifier 59 be used. note: modifier 59 should not be appended to an e/m service. to report a separate and distinct e/m service with a non-e/m service performed on the same date, see modifier 25.
76 Repeat procedure or service by same physician or other qualified health care professional: it may be necessary to indicate that a procedure or service was repeated by the same physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 76 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
91 Repeat clinical diagnostic laboratory test: in the course of treatment of the patient, it may be necessary to repeat the same laboratory test on the same day to obtain subsequent (multiple) test results. under these circumstances, the laboratory test performed can be identified by its usual procedure number and the addition of modifier 91. note: this modifier may not be used when tests are rerun to confirm initial results; due to testing problems with specimens or equipment; or for any other reason when a normal, one-time, reportable result is all that is required. this modifier may not be used when other code(s) describe a series of test results (eg, glucose tolerance tests, evocative/suppression testing). this modifier may only be used for laboratory test(s) performed more than once on the same day on the same patient.
GA Waiver of liability statement issued as required by payer policy, individual case
GC This service has been performed in part by a resident under the direction of a teaching physician
GV Attending physician not employed or paid under arrangement by the patient's hospice provider
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
Q4 Service for ordering/referring physician qualifies as a service exemption
XE Separate encounter, a service that is distinct because it occurred during a separate encounter
XS Separate structure, a service that is distinct because it was performed on a separate organ/structure
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
Date
Action
Notes
2011-01-01 Changed Short description changed.
2001-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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Description
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