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Official Description

Culture, presumptive, pathogenic organisms, screening only; with colony estimation from density chart

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 87084 refers to a laboratory procedure known as a culture for presumptive pathogenic organisms, specifically designed for screening purposes. This test is utilized when there is a suspicion of a specific pathogen causing an infection or disease. During the procedure, a blood sample is collected from the patient and subsequently placed in a specialized growth medium that supports the proliferation of the suspected pathogen. The primary objective of this test is to identify the presence of pathogenic organisms by observing the growth of colonies in the medium. Once colonies develop, they are meticulously examined to determine the type and quantity of the organisms present. Importantly, this code is applicable when the estimation of pathogenic material within the colonies is conducted using a density chart, which serves as a reference for quantifying the growth. This process is crucial for diagnosing infections and guiding appropriate treatment options based on the identified pathogens.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The CPT® Code 87084 is indicated for use in situations where there is a clinical suspicion of a specific pathogenic organism that may be responsible for an infection. The following conditions may warrant the performance of this test:

  • Suspected Infection The test is performed when a patient exhibits symptoms indicative of an infection, and a specific pathogen is suspected based on clinical evaluation.
  • Monitoring Pathogen Presence This procedure may be utilized to monitor the presence of known pathogens in patients with a history of recurrent infections.
  • Preliminary Screening The test serves as a preliminary screening tool to identify potential pathogens before more definitive testing is conducted.

2. Procedure

The procedure associated with CPT® Code 87084 involves several critical steps to ensure accurate culture and identification of pathogenic organisms. The following steps outline the process:

  • Step 1: Sample Collection A blood sample is collected from the patient using standard venipuncture techniques. This sample is crucial as it provides the biological material needed for the culture.
  • Step 2: Inoculation of Growth Medium The collected blood sample is then inoculated into a growth medium that is specifically designed to support the growth of the suspected pathogen. This medium provides the necessary nutrients and environment for the organisms to thrive.
  • Step 3: Incubation The inoculated medium is placed in an incubator under controlled conditions, allowing sufficient time for any potential pathogens to grow. The incubation period may vary depending on the suspected organism.
  • Step 4: Colony Examination After the incubation period, the growth medium is examined for the presence of colonies. Each colony represents a potential pathogenic organism that has proliferated from the original sample.
  • Step 5: Colony Estimation The colonies that have developed are then assessed for their density using a reference chart. This estimation helps in quantifying the amount of pathogenic material present in the culture.

3. Post-Procedure

Following the completion of the culture procedure associated with CPT® Code 87084, several post-procedure considerations are important. The laboratory will analyze the results of the culture and provide a report detailing the presence and quantity of any pathogenic organisms identified. Clinicians will use this information to guide further diagnostic and therapeutic decisions. It is essential for healthcare providers to communicate the results to the patient and discuss any necessary follow-up actions, which may include additional testing or the initiation of targeted treatment based on the identified pathogens. Additionally, proper documentation of the procedure and results is crucial for compliance and billing purposes.

Short Descr CULTURE OF SPECIMEN BY KIT
Medium Descr CUL PRSMPTV PTHGNC ORGANISMS SCR DNS CHART
Long Descr Culture, presumptive, pathogenic organisms, screening only; with colony estimation from density chart
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) T1F - Lab tests - bacterial cultures
MUE 1
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.
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.
GW Service not related to the hospice patient's terminal condition
Date
Action
Notes
2001-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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