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Official Description

Ova and parasites, direct smears, concentration and identification

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 87177 refers to the laboratory procedure for the examination of ova and parasites through direct smears, concentration, and identification. This procedure involves the collection of a stool sample from a patient, which is then subjected to microscopic analysis. The primary goal of this examination is to detect the presence of parasitic organisms or their eggs within the sample. The process begins with the preparation of the stool specimen, which may involve concentrating the sample to enhance the visibility of any parasites present. Once prepared, the sample is placed on a microscope slide and examined by a trained laboratory technician or pathologist. This examination is crucial for diagnosing various parasitic infections that can affect the gastrointestinal tract, leading to symptoms such as diarrhea, abdominal pain, and other digestive issues. The identification of specific parasites can guide appropriate treatment options and management strategies for the patient.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 87177 is indicated for the evaluation of patients who present with gastrointestinal symptoms that may suggest a parasitic infection. The following conditions warrant this examination:

  • Diarrhea Persistent or acute diarrhea that may be caused by parasitic organisms.
  • Abdominal Pain Unexplained abdominal discomfort that could be linked to parasitic infections.
  • Weight Loss Unintentional weight loss that may indicate malabsorption due to parasitic infestation.
  • Nausea and Vomiting Symptoms that may accompany gastrointestinal disturbances related to parasites.
  • Travel History Recent travel to areas where parasitic infections are endemic, raising suspicion for potential exposure.

2. Procedure

The procedure for CPT® Code 87177 involves several key steps to ensure accurate identification of ova and parasites in the stool sample. The following procedural steps are outlined:

  • Sample Collection A stool sample is collected from the patient, typically using a clean, dry container to avoid contamination. It is important that the sample is fresh and properly labeled to ensure accurate testing.
  • Preparation of the Sample The stool sample is prepared for examination, which may involve mixing the sample with a preservative or diluent to concentrate the ova and parasites. This step enhances the visibility of the organisms under the microscope.
  • Microscopic Examination The prepared sample is placed on a microscope slide and examined under a microscope by a qualified laboratory technician. The technician looks for the presence of parasites or their eggs, identifying specific types based on their morphology.
  • Documentation of Findings Any identified ova or parasites are documented in detail, including their type and quantity. This documentation is crucial for accurate diagnosis and treatment recommendations.

3. Post-Procedure

After the completion of the ova and parasites examination, the laboratory technician will compile a report detailing the findings. This report is then sent to the requesting physician for review. Depending on the results, further diagnostic testing or treatment may be recommended. Patients may be advised to follow up with their healthcare provider to discuss the results and any necessary next steps. It is also important for patients to maintain hydration and report any worsening symptoms to their healthcare provider during the recovery period.

Short Descr OVA AND PARASITES SMEARS
Medium Descr OVA&PARASITES DIRECT SMEARS CONCENTRATION & ID
Long Descr Ova and parasites, direct smears, concentration and identification
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 3
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.
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.
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.
77 Repeat procedure by another physician or other qualified health care professional: it may be necessary to indicate that a basic procedure or service was repeated by another physician or other qualified health care professional subsequent to the original procedure or service. this circumstance may be reported by adding modifier 77 to the repeated procedure or service. note: this modifier should not be appended to an e/m service.
Q4 Service for ordering/referring physician qualifies as a service exemption
GA Waiver of liability statement issued as required by payer policy, individual case
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.
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.
95 Synchronous telemedicine service rendered via a real-time interactive audio and video telecommunications system: synchronous telemedicine service is defined as a real-time interaction between a physician or other qualified health care professional and a patient who is located at a distant site from the physician or other qualified health care professional. the totality of the communication of information exchanged between the physician or other qualified health care professional and the patient during the course of the synchronous telemedicine service must be of an amount and nature that would be sufficient to meet the key components and/or requirements of the same service when rendered via a face-to-face interaction. modifier 95 may only be appended to the services listed in appendix p. appendix p is the list of cpt codes for services that are typically performed face-to-face, but may be rendered via a real-time (synchronous) interactive audio and video telecommunications system.
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
GW Service not related to the hospice patient's terminal condition
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
Q1 Routine clinical service provided in a clinical research study that is in an approved clinical research study
X5 Diagnostic services requested by another clinician: for reporting services by a clinician who furnishes care to the patient only as requested by another clinician or subsequent and related services requested by another clinician; this modifier is reported for patient relationships that may not be adequately captured by the above alternative categories; reporting clinician service examples include but are not limited to, the radiologist's interpretation of an imaging study requested by another clinician
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
2013-01-01 Changed Medium Descriptor changed.
Pre-1990 Added Code added.
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