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Official Description

Concentration (any type), for infectious agents

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 87015 refers to the process of concentrating infectious agents for further study. This procedure involves isolating these agents by evaporating or otherwise removing extraneous materials from the sample in which the infectious agents are present. Concentration is a critical step in microbiological analysis, as it enhances the detection and identification of pathogens that may be present in low quantities within a sample. By concentrating the infectious agents, laboratory professionals can improve the accuracy of diagnostic tests and ensure that the results are reliable. This procedure is essential in various clinical settings, particularly in the diagnosis of infectious diseases, where precise identification of pathogens is crucial for effective treatment and management.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 87015 is indicated for the isolation and study of infectious agents. This is particularly relevant in the following scenarios:

  • Diagnosis of Infectious Diseases The concentration of infectious agents is performed to aid in the diagnosis of various infectious diseases, where the presence of pathogens needs to be confirmed.
  • Microbiological Research This procedure is utilized in research settings to study the characteristics and behaviors of infectious agents, contributing to the understanding of disease mechanisms.
  • Quality Control in Laboratory Settings Concentration techniques may be employed to ensure the reliability and accuracy of laboratory tests by confirming the presence of infectious agents in samples.

2. Procedure

The procedure for CPT® Code 87015 involves several key steps to effectively concentrate infectious agents from a sample. Each step is crucial for ensuring that the agents are isolated properly for further analysis.

  • Sample Collection The first step involves the careful collection of a sample that may contain infectious agents. This sample can be derived from various sources, such as blood, urine, or other bodily fluids, depending on the suspected infection.
  • Preparation of the Sample Once the sample is collected, it is prepared for concentration. This may involve the addition of specific reagents or the adjustment of pH levels to facilitate the removal of non-infectious materials.
  • Concentration Process The concentration of infectious agents is achieved through methods such as evaporation or centrifugation. These techniques help to remove excess fluid and concentrate the infectious agents into a smaller volume, making them easier to analyze.
  • Isolation of Infectious Agents After concentration, the infectious agents are isolated from the remaining material. This may involve filtration or other separation techniques to ensure that only the target pathogens are retained for study.
  • Analysis and Testing Finally, the concentrated sample is subjected to various microbiological tests to identify and characterize the infectious agents present. This step is critical for determining the appropriate treatment and management of the infection.

3. Post-Procedure

Post-procedure care for CPT® Code 87015 typically involves the proper handling and storage of the concentrated samples for further analysis. It is essential to maintain the integrity of the samples to ensure accurate test results. Additionally, laboratory personnel must follow strict biosafety protocols to prevent contamination and ensure the safety of the laboratory environment. The results obtained from the concentrated samples will guide clinical decisions regarding diagnosis and treatment, making it imperative that the post-procedure processes are conducted meticulously.

Short Descr SPECIMEN INFECT AGNT CONCNTJ
Medium Descr CONCENTRATION INFECTIOUS AGENTS
Long Descr Concentration (any type), for infectious agents
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)
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.
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.
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.
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.
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
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.
CR Catastrophe/disaster related
GA Waiver of liability statement issued as required by payer policy, individual case
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
Q4 Service for ordering/referring physician qualifies as a service exemption
Q6 Service furnished under a fee-for-time compensation arrangement by a substitute physician or by a substitute physical therapist furnishing outpatient physical therapy services in a health professional shortage area, a medically underserved area, or a rural area
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
Date
Action
Notes
2013-01-01 Changed Short Descriptor changed.
2001-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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Description
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Description
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