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Official Description

Culture, bacterial; any source, except blood, anaerobic with isolation and presumptive identification of isolates

© Copyright 2026 American Medical Association. All rights reserved.

Common Language Description

The CPT® Code 87075 refers to a specific laboratory procedure known as a bacterial culture, which is performed on any source other than blood. This procedure is particularly focused on anaerobic bacteria, which are microorganisms that thrive in environments devoid of oxygen. During the process, a tissue sample is collected from the patient and placed in a specialized growth medium that supports the proliferation of bacteria. The primary goal of this culture is to isolate and presumptively identify the anaerobic bacteria present in the sample. This is crucial for diagnosing infections caused by these types of bacteria, as they often require specific conditions for growth and may not be detected through standard aerobic culture methods. The identification of anaerobic bacteria is essential for guiding appropriate treatment options and ensuring effective patient care.

© Copyright 2026 Coding Ahead. All rights reserved.

1. Indications

The procedure associated with CPT® Code 87075 is indicated for the evaluation of infections or conditions where anaerobic bacteria are suspected. This may include, but is not limited to, the following:

  • Intra-abdominal infections These infections may arise from perforations or abscesses in the gastrointestinal tract.
  • Soft tissue infections Such infections can occur in areas with poor blood supply or following trauma.
  • Bone and joint infections These may involve osteomyelitis or septic arthritis, particularly in cases with a history of trauma or surgery.
  • Dental infections Conditions such as periodontal disease can lead to anaerobic infections in the oral cavity.

2. Procedure

The procedure for CPT® Code 87075 involves several critical steps to ensure accurate isolation and identification of anaerobic bacteria. First, a sample is collected from the patient, which may be obtained from various sources such as tissue, abscess fluid, or other infected sites, excluding blood. The sample is then placed into a suitable anaerobic culture medium that creates an oxygen-free environment, essential for the growth of anaerobic bacteria. This medium is designed to support the growth of a wide range of anaerobic organisms.

Once the sample is inoculated into the medium, it is incubated under controlled conditions, typically at a temperature conducive to bacterial growth, often around 35-37 degrees Celsius. The incubation period may vary but generally lasts for 48 hours or more, allowing sufficient time for any anaerobic bacteria present in the sample to multiply. After the incubation period, the culture is examined for signs of bacterial growth. If growth is observed, further testing is conducted to isolate the bacteria and perform presumptive identification, which may include biochemical tests or other identification methods specific to anaerobic organisms.

3. Post-Procedure

After the completion of the anaerobic culture procedure, the laboratory will analyze the results and provide a report detailing the types of bacteria isolated, along with their presumptive identification. This information is crucial for the treating physician to determine the appropriate course of treatment. Depending on the findings, further testing may be required to confirm the identity of the bacteria and assess their susceptibility to antibiotics. It is important for healthcare providers to follow up with the patient regarding the results and any necessary treatment adjustments based on the culture findings.

Short Descr CULTR BACTERIA EXCEPT BLOOD
Medium Descr CULTURE BACTERIAL ANY SOURCE ANAEROBIC ISO&ID
Long Descr Culture, bacterial; any source, except blood, anaerobic with isolation and presumptive identification of isolates
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 6
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.
GW Service not related to the hospice patient's terminal condition
XU Unusual non-overlapping service, the use of a service that is distinct because it does not overlap usual components of the main service
AY Item or service furnished to an esrd patient that is not for the treatment of esrd
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.
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.
GV Attending physician not employed or paid under arrangement by the patient's hospice provider
GA Waiver of liability statement issued as required by payer policy, individual case
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.
GC This service has been performed in part by a resident under the direction of a teaching physician
GX Notice of liability issued, voluntary under payer policy
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
GZ Item or service expected to be denied as not reasonable and necessary
LT Left side (used to identify procedures performed on the left side of the body)
PD Diagnostic or related non diagnostic item or service provided in a wholly owned or operated entity to a patient who is admitted as an inpatient within 3 days
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
QW Clia waived test
RT Right side (used to identify procedures performed on the right side of the body)
T1 Left foot, second digit
T5 Right foot, great toe
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
Date
Action
Notes
2011-01-01 Changed Short description changed.
2004-01-01 Changed Code description changed.
2001-01-01 Changed Code description changed.
Pre-1990 Added Code added.
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