CPT 87106: Yeast Identification to Species Level

CPT code 87106 describes additional laboratory testing performed by a lab analyst to definitively identify a presumptively identified yeast isolate, typically involving organism-level (for example, species) identification; service type: microbiology identification testing, typical site of service: clinical laboratory or hospital laboratory.

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CPT 87106: Yeast Identification to Species Level

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Sign up for cpt 87106 policy alerts

Get alerted when payer policies referencing 87106 are released or updated.

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Receive email alerts as soon as relevant payer policies are published or updated.

Clinical & Coding Specifications

Clinical Context

A patient presents to an outpatient infectious disease clinic with persistent funguria and recurrent urinary symptoms after initial empiric antimicrobial therapy. Urine culture grows a presumptive yeast isolate on primary media. The laboratory technologist performs initial identification (e.g., morphology, germ tube test) and forwards the isolate to the microbiology laboratory’s mycology bench for definitive species-level identification. The lab analyst conducts additional phenotypic testing (biochemical panels, carbohydrate assimilation), MALDI-TOF mass spectrometry, or molecular methods to identify the yeast to species. Results are reported to the ordering clinician to guide antifungal selection (for example, differentiating Candida albicans from Candida glabrata). Typical workflow steps: specimen receipt and verification, subculture and isolation, presumptive identification, performance of 87106 level definitive identification tests, review and validation by a laboratory director, and result reporting in the electronic medical record. Typical site of service is an outpatient clinical microbiology laboratory, hospital laboratory, or reference laboratory. Common patient scenarios include persistent or recurrent candiduria, bloodstream infection surveillance isolates forwarded for specialty ID lab work, or isolates from sterile sites requiring species-level identification for targeted therapy.

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`87070`	Culture, bacterial; any other source, with isolation and presumptive identification of bacterial colonies	Performed prior to `87106` when cultures from clinical specimens produce isolates that require presumptive identification before species-level yeast testing.
`87140`	Culture, fungal, pathogenic; any other source, direct examination and presumptive identification	Often performed as the initial fungal culture; positive fungal growth may then be forwarded for definitive identification by `87106`.
`88348`	Surgical pathology, microbiology consultative services (interpretation of culture or organism)	May be used when pathology consults on microbiology results that include species-level identification implications.
`87481`	Infectious agent antigen detection by immunoassay technique, Streptococcus, group A; qualitative or semiquantitative, multiple-step method	Represents examples of organism-specific testing; organism-specific assays may complement species identification workflows.
`87802`	Infectious agent antigen detection by immunoassay technique, multiple agents; qualitative or semiquantitative	Antigen or rapid tests that may be performed alongside culture-based identification in diagnostic workflows.

Related Modifiers

5 rows

Modifier	Description	When to Use
26	Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…	- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…
59	Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…	- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…
90	Modifier ‑90 (Reference/Outside Laboratory) indicates that a laboratory test was performed by an entity other than the treating or reporting provider. The American Medical Association defines…	- Use CPT modifier -90 when a laboratory test is performed by an outside/reference laboratory (an entity other than the treating or reporting physician or qualified professional) and the claim needs…
91	Modifier 91 — “Repeat Clinical Diagnostic Laboratory Test” — is appended when the exact same CPT laboratory test is performed more than once for the same patient on the same day because serial,…	- Use modifier 91 when the exact same CPT laboratory test is performed more than once on the same patient on the same date because serial or repeated testing is medically necessary to monitor…
1P	Modifier 1P is a Category II performance measure exclusion modifier used to indicate that a patient’s medical condition prevented performance of the action specified by a Category II quality measure…	- Use modifier 1P only with Category II (quality reporting) codes when the specific measure’s reporting instructions explicitly allow a medical-reason exclusion; it marks the patient as medically…

Related Provider Taxonomies

8 rows

Taxonomy Code	Specialty	Notes
207RG0300X	Geriatric Medicine (Internal Medicine) Physician	An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects o…
207K00000X	Allergy & Immunology Physician	An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Select…
2080P0207X	Pediatric Hematology & Oncology Physician	A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous disea…
208D00000X	General Practice Physician	A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.
202K00000X	Phlebology Physician	Phlebology is the medical discipline that involves the diagnosis and treatment of venous disorders, including spider veins, varicose veins, chronic ve…
146E00000X	Community Paramedic	A Community Paramedic is trained in responding to a scene and arranging appointments and transportation to alternate destinations through established …
1835N0905X	Nuclear Pharmacist	A licensed pharmacist who has demonstrated specialized knowledge and skill in procurement, compounding, quality control testing, dispensing, distribut…
385H00000X	Respite Care	Respite Care Facility · Respite Care

Related ICD-10-CM Codes

22 rows

ICD-10-CM Code	Description
A54.02	Gonococcal vulvovaginitis, unspecified
A54.85	Gonococcal peritonitis
B37.0	Candidal stomatitis
B37.1	Pulmonary candidiasis
B37.2	Candidiasis of skin and nail
B37.5	Candidal meningitis
B37.6	Candidal endocarditis
B37.9	Candidiasis, unspecified
B95.1	Streptococcus, group B, as the cause of diseases classified elsewhere
B95.2	Enterococcus as the cause of diseases classified elsewhere

Showing 1–10 of 22

Related Payer Policy Updates

Specialty: Infectious Disease1 / 3

10 rows

Policy	Payer	Effective Date
B-Hemolytic Streptococcus Testing	Oscar Health	2026-10-01
Human Immunodeficiency Virus (HIV) — Coverage Criteria for Testing and Resistance Assays	Oscar Health	2026-10-01
Hepatitis Testing (A, B, C, D) Coverage Criteria	Oscar Health	2026-10-01
Pathogen Panel Testing	Oscar Health	2026-10-01
Lyme Disease Testing Coverage Criteria	Oscar Health	2026-10-01
Diagnostic Testing of Common Sexually Transmitted Infections	Oscar Health	2026-10-01
Testing for Diagnosis of Active or Latent Tuberculosis	Oscar Health	2026-10-01
Coronavirus Testing in the Outpatient Setting	Oscar Health	2026-10-01
Testing for Vector-Borne Infections	Oscar Health	2026-10-01
Human Immunodeficiency Virus (HIV)	blue cross blue shield - louisiana	2026-09-15

CPT 87086: Urine Culture with Quantitative Colony Count

CPT-87040-BLOOD-CULTURE-ISOLATION-PRESUMPTIVE-IDENTIFICATION

CPT 87040: Blood Bacterial Culture with Isolation and Presumptive ID

CPT-87045-AEROBIC-BACTERIAL-STOOL-CULTURE-SALMONELLA-SHIGELLA

CPT 87045: Aerobic Bacterial Stool Culture for Salmonella/Shigella

CPT-87046-AEROBIC-BACTERIAL-STOOL-CULTURE-PRESUMPTIVE-ID-NON-SALMONELLA-SHIGELLA

CPT 87046: Aerobic Bacterial Stool Culture, Presumptive ID (non-Salmonella/Shigella)

CPT-87070-AEROBIC-CULTURE-ISOLATION-PRESUMPTIVE-IDENTIFICATION

CPT 87070: Aerobic Culture with Isolation and Presumptive Identification

CPT-87071-AEROBIC-QUANTITATIVE-BACTERIAL-CULTURE-NON-URINE-BLOOD-STOOL

CPT 87071: Quantitative Aerobic Bacterial Culture, Non-urine/blood/stool

CPT-87073-ANAEROBIC-CULTURE-NONBLOOD-NONURINE-NONSTOOL

CPT 87073: Anaerobic Culture, Non-Urine/Blood/Stool

CPT-87075-ANAEROBIC-CULTURE-IDENTIFICATION-NON-BLOOD-SPECIMEN

CPT 87075: Anaerobic Culture and Bacterial Identification (Nonblood)

CPT-87076-ANAEROBIC-ISOLATE-DEFINITIVE-IDENTIFICATION

CPT 87076: Anaerobic Isolate Identification to Species Level

CPT-87077-DEFINITIVE-IDENTIFICATION-AEROBIC-ISOLATE

CPT 87077: Definitive Identification of Aerobic Isolate

Showing 1–10 of 30

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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Clinical & Coding Specifications

Clinical Context

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`87070`	Culture, bacterial; any other source, with isolation and presumptive identification of bacterial colonies	Performed prior to `87106` when cultures from clinical specimens produce isolates that require presumptive identification before species-level yeast testing.
`87140`	Culture, fungal, pathogenic; any other source, direct examination and presumptive identification	Often performed as the initial fungal culture; positive fungal growth may then be forwarded for definitive identification by `87106`.
`88348`	Surgical pathology, microbiology consultative services (interpretation of culture or organism)	May be used when pathology consults on microbiology results that include species-level identification implications.
`87481`	Infectious agent antigen detection by immunoassay technique, Streptococcus, group A; qualitative or semiquantitative, multiple-step method	Represents examples of organism-specific testing; organism-specific assays may complement species identification workflows.
`87802`	Infectious agent antigen detection by immunoassay technique, multiple agents; qualitative or semiquantitative	Antigen or rapid tests that may be performed alongside culture-based identification in diagnostic workflows.

Related Modifiers

5 rows

Modifier	Description	When to Use
26	Modifier 26 (Professional Component) identifies and bills only the professional portion of a split service — the physician’s interpretation, report, and medical judgment — when the technical…	- Use CPT Modifier -26 when you are billing only the professional component (PC) of a split‑bill eligible service—i.e., you performed the physician interpretation, medical judgment and prepared a…
59	Modifier 59 indicates a distinct procedural service when two procedures that are not normally billed together are clinically and procedurally separate. The CPT definition (as reiterated by CMS)…	- Use modifier -59 to report a distinct procedural service when documentation supports that the procedure reported is not normally billed together with another service on the same day because of a…
90	Modifier ‑90 (Reference/Outside Laboratory) indicates that a laboratory test was performed by an entity other than the treating or reporting provider. The American Medical Association defines…	- Use CPT modifier -90 when a laboratory test is performed by an outside/reference laboratory (an entity other than the treating or reporting physician or qualified professional) and the claim needs…
91	Modifier 91 — “Repeat Clinical Diagnostic Laboratory Test” — is appended when the exact same CPT laboratory test is performed more than once for the same patient on the same day because serial,…	- Use modifier 91 when the exact same CPT laboratory test is performed more than once on the same patient on the same date because serial or repeated testing is medically necessary to monitor…
1P	Modifier 1P is a Category II performance measure exclusion modifier used to indicate that a patient’s medical condition prevented performance of the action specified by a Category II quality measure…	- Use modifier 1P only with Category II (quality reporting) codes when the specific measure’s reporting instructions explicitly allow a medical-reason exclusion; it marks the patient as medically…

Related Provider Taxonomies

8 rows

Taxonomy Code	Specialty	Notes
207RG0300X	Geriatric Medicine (Internal Medicine) Physician	An internist who has special knowledge of the aging process and special skills in the diagnostic, therapeutic, preventive and rehabilitative aspects o…
207K00000X	Allergy & Immunology Physician	An allergist-immunologist is trained in evaluation, physical and laboratory diagnosis, and management of disorders involving the immune system. Select…
2080P0207X	Pediatric Hematology & Oncology Physician	A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous disea…
208D00000X	General Practice Physician	A physician who specializes in the general practice of diagnosing, treating, and managing patients with a variety of illnesses and conditions.
202K00000X	Phlebology Physician	Phlebology is the medical discipline that involves the diagnosis and treatment of venous disorders, including spider veins, varicose veins, chronic ve…
146E00000X	Community Paramedic	A Community Paramedic is trained in responding to a scene and arranging appointments and transportation to alternate destinations through established …
1835N0905X	Nuclear Pharmacist	A licensed pharmacist who has demonstrated specialized knowledge and skill in procurement, compounding, quality control testing, dispensing, distribut…
385H00000X	Respite Care	Respite Care Facility · Respite Care

Related ICD-10-CM Codes

22 rows

ICD-10-CM Code	Description
A54.02	Gonococcal vulvovaginitis, unspecified
A54.85	Gonococcal peritonitis
B37.0	Candidal stomatitis
B37.1	Pulmonary candidiasis
B37.2	Candidiasis of skin and nail
B37.5	Candidal meningitis
B37.6	Candidal endocarditis
B37.9	Candidiasis, unspecified
B95.1	Streptococcus, group B, as the cause of diseases classified elsewhere
B95.2	Enterococcus as the cause of diseases classified elsewhere

Showing 1–10 of 22

Related Payer Policy Updates

Specialty: Infectious Disease1 / 3

10 rows

Policy	Payer	Effective Date
B-Hemolytic Streptococcus Testing	Oscar Health	2026-10-01
Human Immunodeficiency Virus (HIV) — Coverage Criteria for Testing and Resistance Assays	Oscar Health	2026-10-01
Hepatitis Testing (A, B, C, D) Coverage Criteria	Oscar Health	2026-10-01
Pathogen Panel Testing	Oscar Health	2026-10-01
Lyme Disease Testing Coverage Criteria	Oscar Health	2026-10-01
Diagnostic Testing of Common Sexually Transmitted Infections	Oscar Health	2026-10-01
Testing for Diagnosis of Active or Latent Tuberculosis	Oscar Health	2026-10-01
Coronavirus Testing in the Outpatient Setting	Oscar Health	2026-10-01
Testing for Vector-Borne Infections	Oscar Health	2026-10-01
Human Immunodeficiency Virus (HIV)	blue cross blue shield - louisiana	2026-09-15

CPT 87086: Urine Culture with Quantitative Colony Count

CPT-87040-BLOOD-CULTURE-ISOLATION-PRESUMPTIVE-IDENTIFICATION

CPT 87040: Blood Bacterial Culture with Isolation and Presumptive ID

CPT-87045-AEROBIC-BACTERIAL-STOOL-CULTURE-SALMONELLA-SHIGELLA

CPT 87045: Aerobic Bacterial Stool Culture for Salmonella/Shigella

CPT-87046-AEROBIC-BACTERIAL-STOOL-CULTURE-PRESUMPTIVE-ID-NON-SALMONELLA-SHIGELLA

CPT 87046: Aerobic Bacterial Stool Culture, Presumptive ID (non-Salmonella/Shigella)

CPT-87070-AEROBIC-CULTURE-ISOLATION-PRESUMPTIVE-IDENTIFICATION

CPT 87070: Aerobic Culture with Isolation and Presumptive Identification

CPT-87071-AEROBIC-QUANTITATIVE-BACTERIAL-CULTURE-NON-URINE-BLOOD-STOOL

CPT 87071: Quantitative Aerobic Bacterial Culture, Non-urine/blood/stool

CPT-87073-ANAEROBIC-CULTURE-NONBLOOD-NONURINE-NONSTOOL

CPT 87073: Anaerobic Culture, Non-Urine/Blood/Stool

CPT-87075-ANAEROBIC-CULTURE-IDENTIFICATION-NON-BLOOD-SPECIMEN

CPT 87075: Anaerobic Culture and Bacterial Identification (Nonblood)

CPT-87076-ANAEROBIC-ISOLATE-DEFINITIVE-IDENTIFICATION

CPT 87076: Anaerobic Isolate Identification to Species Level

CPT-87077-DEFINITIVE-IDENTIFICATION-AEROBIC-ISOLATE

CPT 87077: Definitive Identification of Aerobic Isolate

Showing 1–10 of 30

Frequently Asked Questions

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.

OpenPayer

CPT 87106: Yeast Identification to Species Level

Sign up for cpt 87106 policy alerts

OpenPayer

CPT 87106: Yeast Identification to Species Level

Sign up for cpt 87106 policy alerts

Clinical & Coding Specifications

Clinical Context

Related CPT Codes

Related Modifiers

Related Provider Taxonomies

Related ICD-10-CM Codes

Related Payer Policy Updates

Related Codes

References

Clinical & Coding Specifications

Clinical Context

Related CPT Codes

Related Modifiers

Related Provider Taxonomies

Related ICD-10-CM Codes

Related Payer Policy Updates

Related Codes

References

CPT 87106: Yeast Identification to Species Level

Sign up for cpt 87106 policy alerts

CPT 87106: Yeast Identification to Species Level

Sign up for cpt 87106 policy alerts

Clinical & Coding Specifications

Clinical Context

Related CPT Codes

Related Modifiers

Related Provider Taxonomies

Related ICD-10-CM Codes

Related Payer Policy Updates

Related Codes

What does CPT 87106 represent and where is it typically performed?

What is the usual laboratory workflow and site of service for procedures billed with 87106?

How does 87106 relate to other CPT codes like 87070 and 87140?

In what clinical situations or diagnoses is 87106 commonly used?

Which modifiers and specialties are associated with billing or ordering for 87106?

References

Clinical & Coding Specifications

Clinical Context

Related CPT Codes

Related Modifiers

Related Provider Taxonomies

Related ICD-10-CM Codes

Related Payer Policy Updates

Related Codes

What does CPT 87106 represent and where is it typically performed?

What is the usual laboratory workflow and site of service for procedures billed with 87106?

How does 87106 relate to other CPT codes like 87070 and 87140?

In what clinical situations or diagnoses is 87106 commonly used?

Which modifiers and specialties are associated with billing or ordering for 87106?

References