Tests and Fees
Laboratory Testing Services and Fees (Note: Updated fees for July 1, 2024 through June 30, 2025). Please call the County of San Luis Obispo Public Health Laboratory (805) 781-5507 Monday - Friday 8:00am - 5:00pm (closed weekends and holidays), with any questions about testing services.
Refer to the test catalog for a for a compilation of test information and specimen collection instructions, and for an explanation of fees and insurance carriers for fee-related details.
Unless otherwise noted, specimens may only be collected by authorized medical professionals at any clinical practice or clinical location in the County. Specimens must be transported by courier or other means to the County of San Luis Obispo Public Health Laboratory at 2191 Johnson Avenue, San Luis Obispo, for testing.
Click on the category of test or services below.
Tests by Category
| TEST PERFORMED | TEST # | PERFORMED | TEST FEE | SPECIMEN COLLECTION & TRANSPORT |
REQUISITION # | CPT CODE |
|---|---|---|---|---|---|---|
| Aeromonas-Plesiomonas culture | 2310 | Daily | $87 | 17, 17S | 100 | 87046 |
| Antibiotic susceptibility testing, urine culture isolate | 2600 | Daily | $56 | 21 | 100 | 87184 |
| Bacteriology primary culture | 2025 | Daily | $95 | 100 | 87070 | |
| Bacteriology isolate identification, set-up (No fee for pathogens of public health interest) | 2085 | Daily | $89 | 100 | 87077 | |
| Campylobacter culture | 2240 | Daily | $84 | 17, 17S | 100 | 87046 |
| Carba-R assay (carbapenem resistance) | 2350 | Daily | No fee | 39 | 100 | 87150 |
| E. coli shiga toxin-producing culture | 2250 | Daily | $129 | 100 | 87046 | |
| E. coli shiga toxin-producing, isolate confirmation | 2080 | Daily | No fee | 87070 | ||
| Gram stain | 2035 | Daily | $40 | 100 | 87205 | |
| Legionella urinary antigen | 2400 | Daily | $77 | 67 | 100 | 87426 |
| MALDI-TOF MS Bacterial ID | 2460, 2470 | Daily | $80 | 100 | 87077 | |
| Neisseria gonorrhoeae culture | 2050 | Daily | $46 | 11 | 100 | 87081 |
| Neisseria gonorrhoeae culture confirmation | 2040 | Daily | $89 | 100 | 87077 | |
| Salmonella culture | 2220 | Daily | $109 | 17, 17S | 100 | 87045 |
| Shigella culture | 2230 | Daily | $108 | 17, 17S | 100 | 87045 |
| Shiga toxin EIA | 2290 | Daily | $247 | 17, 17S | 100 | 87427 |
|
Stool culture isolate identification |
2280 | Daily | $88 | 100 | 87045 | |
| Streptococcus culture | 2015 | Daily | $46 | 19 | 100 | 87081 |
| Urine culture with colony count | 2065 | Daily | $54 | 21 | 100 | 87086 |
| Vibrio culture | 2260 | Daily | $86 | 17, 17S | 100 | 87046 |
| Yersinia enterocolitica culture | 2270 | Daily | $87 | 17, 17S | 100 | 87046 |
| Bacteriology Panel | Test # | Performed | Test Fee | Specimen Collection & Transport | Requisition # | CPT | |
|---|---|---|---|---|---|---|---|
| Comprehensive Stool Culture
for Salmonella, Shigella, Campylobacter, Shiga toxin-producing E. coli, Vibrio species, Aeromonas species, and Plesiomonas shigelloides |
2300 | Daily | $628 | 17, 17S | 100 | 87045, 87046 | |
| Gastrointestinal PCR Panel (GP)
includes common bacteria, parasites, and viruses |
6500 | Daily | $258 | 17, 17S | 100 | 87507 | |
| Standard Stool Culture
for Salmonella, Shigella, Campylobacter, and Shiga toxin-producing E. coli |
2200 | Daily | $322 | 17, 17S | 100 | 87045, 87046 | |
These specialized tests for biothreat agents are performed in specific circumstances and can only be submitted by authorized personnel after consultation with the lab. Additional information can be found at: Laboratory Biothreat Testing.
| TEST PERFORMED | TEST # | PERFORMED | TEST FEE | SPECIMEN COLLECTION & TRANSPORT |
REQUISITION | CPT CODE |
|---|---|---|---|---|---|---|
| Bordetella (pertussis) NAAT | 2120 | Daily | $125 | 6 | 100 | 87798 |
| Chlamydia NAAT | 2750 | Daily | $34 | 2 | 100 | 87491 |
| Enterovirus RT-PCR | 6300 | Mon-Wed-Fri | No charge (surveillance) | 23 | 100 | 87798 |
| Gonorrhea NAAT | 2770 | Daily | $34 | 2 | 100 | 87591 |
| Herpes Simplex Virus NAAT | 6840 | Daily | $126 | 35 | 100 | 87798 |
| Influenza/SARS-CoV-2 NAAT (CDC Method) | 51000, 51010 | Daily | $128 | 6 | 100 | 87635 |
| Influenza/SC2 NAAT with RP reflex | 51015 | Daily |
$128 (+$233 if RP performed) |
6 | 100 | 87798 |
| Influenza virus RT-PCR | 51005 | Mon-Wed-Fri |
$128 (no charge for surveillance) |
6 | 100 | 87501 |
| Mycoplasma genitalium NAAT | 2870 | 3x weekly | $69 | 2 | 100 | 87563 |
| Measles Virus PCR (Rubeola) | 6180 | Daily | $142 | 28, 28A | 100 | 87798 |
| MTB complex NAAT (Xpert) | 3530 | Daily | $144 | 15,16 | 100 | 87556 |
| Mumps Virus PCR | 6170 | Daily | $142 | 20 | 100 | 87798 |
| Norovirus RT-PCR | 6100 | Daily | $142 | 17, 17S | 100 | 87798 |
| Poxvirus PCR | Call for Information | Daily | $142 | 13 | 100 | 87798 |
| SARS-CoV-2/Flu/RSV NAAT | 52000, 52030 | Daily | $151 | 6 | 100 | 87637, 87635 |
| SARS-CoV-2 nucleic acid amplification test (NAAT) | 6860 | Daily | $66 | 6 | 100 | 87635 |
| Trichomonas NAAT | 2850 | 3x weekly | $64 | 2 | 100 | 87661 |
| Varicella-Zoster Virus NAAT | 6900 | Daily | $126 | 35 | 100 | 87798 |
| Test Performed | Test # | Performed | Test Fee | Specimen Collection & Transport | Requisition # | CPT | |
|---|---|---|---|---|---|---|---|
| Gastrointestinal PCR Panel (GP)
(includes common bacteria, parasites, and viruses) |
6500 | Daily | $258 | 17, 17S | 100 | 87507 | |
|
51000, 51010 |
Daily |
$128 |
87635, 87636 |
||||
|
Respiratory Pathogen PCR Panel (RP) (includes common viruses, bacteria, and atypical bacteria) |
6310 | Daily | $233 | 6 | 100 | 87633 | |
|
52000, 52030 |
Daily |
$151 |
87637, 87635 |
||||
| TEST PERFORMED | TEST # | PERFORMED | FEE | SPECIMEN COLLECTION & TRANSPORT |
REQUISITION | CPT CODE |
|---|---|---|---|---|---|---|
| Acid-fast bacilli (AFB) concentration | 9900 | Daily | $45 | 100 | 87015 | |
| AFB culture (without concentration)* | 3545 | Daily | $100 | 3 | 100 | 87116 |
| AFB fluorescent smear | 3535 | Daily | $52 | 15, 16 | 100 | 87206 |
| AFB isolate identification (set-up) | 3555 | Daily | $87 | 100 | 87118 | |
| AFB tissue homogenization | 3540 | Daily | $58 | 100 | 87176 | |
| MTB complex NAAT (Xpert) | 3530 | Daily | $144 | 15, 16 | 100 | 87556 |
| Quantiferon Plus | 8800 | Wed | $99 | 14 | 100 | 86480 |
| MALDI-TOF MS Mycobacterial ID | 3660 | Weekly | $108 | 100 | 87118 | |
| MALDI-TOF MS Mold ID | 3960 | Weekly | $94 | 100 | 87107 | |
| MALDI-TOF MS Yeast ID | 3950 | Weekly | $80 | 100 | 87106 | |
| Mycology culture: primary specimen | 3905 | Daily | $126 | 7 | 100 | 87101 |
| Mycology direct exam | 3900 | Daily | $54 | 7 | 100 | 87220 |
| Mycology identification (procedure) | 3980 | Daily | $94 | 100 | 87107 | |
| Mycology isolate identification (set-up) | 3910 | Daily | $111 | 7 | 100 | 87106 |
| *Specimen must be received by 12:00 pm for testing | ||||||
| TEST PERFORMED | TEST # | PERFORMED | FEE | SPECIMEN COLLECTION & TRANSPORT |
REQUISITION | CPT CODE |
|---|---|---|---|---|---|---|
| Cyclospora direct exam | 4045 | Daily | $113 | 18 | 100 | 87206, 87015 |
| Helminth-Arthropod identification | 4020 | Daily | $51 | 87169 | ||
| Isospora special direct exam | 4065 | Daily | $101 | 18 | 100 | 87206, 87015 |
| Microsporidia special direct exam | 4060 | Daily | $77 | 18 | 100 | 87206, 87015 |
| Ova and Parasites (concentration & exam) | 4025 | Daily | $98 | 18 | 100 | 87177 |
| Parasite blood smear exam | 4040 | Daily | $57 | 5 | 100 | 86750 |
| Parasite identification- Trichrome stain | 4010 | Daily | $71 | 18 | 100 | 87209 |
| Parasite special direct exam | 4000 | Daily | $92 | 18 | 100 | 87207 |
| Pinworm prep | 4005 | Daily | $48 | 12 | 100 | 87172 |
| TEST PERFORMED | TEST # | PERFORMED | FEE | SPECIMEN COLLECTION & TRANSPORT |
REQUISITION | CPT CODE |
|---|---|---|---|---|---|---|
| Blood Lead | 9150 | Daily | $44 | 4 | 100 | 83655 |
| HIV antigen & antibody immunoassay, serum | 5500 | Tues & Thurs | $80 | 100 | 87389 | |
| HIV antibody differentiation test | 5700 | Day after screen | $103 | 34 | 100 | 86689 |
| RPR, serum | 5035 | Mon, Tues, Thurs | $36 | 32 | 100 | 86592 |
| RPR, serum, titer | 5040 | Mon, Tues, Thurs | $49 | 32 | 100 | 86593 |
| Treponema pallidum particle agglutination test (TP-PA, syphilis conf.) | 5065 | Mon, Tues, Thurs | $89 | 32 | 100 | 86780 |
| Varicella-Zoster (VZV) antibody | 5100 | Mon | $110 | 33 | 100 | 86787 |
| VDRL, CSF | 5060 | Tues & Thurs | $45 | 100 | 86593 |
| TEST PERFORMED | TEST # | PERFORMED | FEE | SPECIMEN COLLECTION & TRANSPORT |
REQUISITION | CPT CODE |
|---|---|---|---|---|---|---|
| Tick Identification |
4015 | Daily | $37 | 29 | 300 | 87168 |
| Tick Lyme Disease Testing | ---- | Referred | $28.60 | 68 | 301 | ----- |
| TEST PERFORMED | TEST # | PERFORMED | FEE | SPECIMEN COLLECTION & TRANSPORT |
REQUISITION | CPT CODE |
|---|---|---|---|---|---|---|
| Chlamydia NAAT | 2750 | Daily | $34 | 2 | 100 | 87491 |
| Gonorrhea NAAT | 2770 | Daily | $34 | 2 | 100 | 87591 |
| Herpes Simplex Virus NAAT | 6840 | Daily | $126 | 35 | 100 | 87798 |
| HIV antigen & antibody immunoassay, serum | 5500 | Tues-Thurs | $80 | 34 | 100 | 87389 |
| HIV antibody differentiation test | 5700 | Day after screen | $103 | 34 | 100 | 86689 |
| Mycoplasma genitalium NAAT | 2870 | 3x weekly | $69 | 2 | 100 | 87563 |
| N. gonorrhoeae culture | 2050 | Daily | $47 | 11 | 100 | 87081 |
| RPR, serum | 5035 | Mon, Tues, Thurs | $36 | 32 | 100 | 86592 |
| RPR, serum, titer | 5040 | Mon, Tues, Thurs | $49 | 32 | 100 | 86593 |
| Treponema pallidum particle agglutination (TP-PA, syphilis confirmation) | 5065 | Mon, Tues, Thurs | $89 | 32 | 100 | 86780 |
| Trichomonas NAAT | 2850 | 3x weekly | $64 | 2 | 100 | 87661 |
| VDRL, CSF | 5060 | Tues, Thurs | $45 | 100 | 86593 |
| DESCRIPTION | FEE | REQUISITION |
|---|---|---|
| Bioterrorism Agent Testing | None | |
| Suspected Ebola Patient Specimen Protocol | None | 100 |
| Reference Testing (Commercial) | At cost | |
| Urgent Charge—Per Episode (testing done outside regularly scheduled hours) | $174 | |
| Non-Diagnostic General Health Assessment, Single Event Program | $85 | NGHA Application |
| Non-Diagnostic General Health Assessment, Multiple Event Program | $125 | NGHA Application |
| TEST PERFORMED | TEST # | PERFORMED | FEE | SPECIMEN COLLECTION AND TRANSPORT | REQUISITION | CPT CODE |
|---|---|---|---|---|---|---|
| Hantavirus Testing | 9000 | Referred | Referred | 25 | 100 | NA |
| Herpes Simplex Virus NAAT | 6840 | Daily | $126 | 35 | 100 | 87798 |
| Influenza virus RT-PCR | 51005 | Mon-Wed-Fri | $128 (No charge for surveillance) | 6 | 100 | 87798 |
| Influenza/SC2 NAAT with RP reflex | 51015 | Daily | $128 (+$233 if RP performed) | 6 | 100 | 87798 |
| Measles virus PCR (Rubeola) | 6180 | Daily | $142 | 28, 28A | 100 | 87798 |
| Mumps virus PCR | 6170 | Daily | $142 | 20 | 100 | 87798 |
| Norovirus RT-PCR | 6100 | Daily | $142 | 17, 17S | 100 | 87798 |
| Rabies DFA | 6000 | Daily | $170 | 69 | 500 | N/A |
|
6860 |
Daily |
$66 |
87635 | |||
| Varicella-Zoster Virus NAAT | 6900 | Daily | $126 | 35 | 100 | 87798 |
| VZV antibody | 5100 | Mon | $110 | 86787 | ||
| Zika | 9000 | Daily | Call | 24 | 100 | NA |
| Test Performed | Test # | Performed | Test Fee | Specimen Collection & Transport | Requisition # | CPT | |
|---|---|---|---|---|---|---|---|
| Gastrointestinal PCR Panel (GP)
(includes common bacteria, parasites, and viruses |
6500 | Daily | $258 | 17, 17S | 100 | 87507 | |
|
51000, 51010 |
Daily |
$128 |
87635, 87636 |
||||
|
Respiratory Pathogen PCR Panel (RP) (includes common viruses, bacteria, and atypical bacteria) |
6310 | Daily | $233 | 6 | 100 | 87633 | |
|
52000, 52030 |
Daily |
$151 |
87637, 87635 |
||||
Drinking Water
| TEST PERFORMED | TEST # | PERFORMED | FEE | SPECIMEN COLLECTION & TRANSPORT |
REQUISITION |
|---|---|---|---|---|---|
| Total coliforms & E. coli Presence-Absence | 8040 | Daily (1-day test) | $40 | 61, 62, 63 | 200 |
| Total coliforms & E. coli MPN, Undiluted | 8350 | Daily (1-day test) | $44 | 61, 62, 63 | 200 |
| Heterotrophic plate count | 8045 | Daily (2-day test) | $80 | 61, 62, 63 | 200 |
Ambient (Recreational and Ocean) Water
| TEST PERFORMED | TEST # | PERFORMED | FEE | SPECIMEN COLLECTION & TRANSPORT |
REQUISITION |
|---|---|---|---|---|---|
| Total coliforms & E. coli MPN, Undiluted | 8350 | Daily (1-day test) | $44 | 66 | 200 |
| Total coliforms & E. coli MPN, 1:10 dilution | 8025 | Daily (1-day test) | $44 | 66 | 200 |
| Enterococci MPN, undiluted | 8110 | Daily (1-day test) | $48 | 66 | 200 |
| Enterococci MPN, 1:10 dilution | 8010 | Daily (1-day test) | $48 | 66 | 200 |
| Thermotolerant (fecal) coliforms MPN, A-1 | 8910 | By appointment | $122 | 66 | 200 |
Spa and Swimming Pool Water
| TEST PERFORMED | TEST # | PERFORMED | FEE | SPECIMEN COLLECTION & TRANSPORT |
REQUISITION |
|---|---|---|---|---|---|
| Pseudomonas count | 8050 | Daily (1-day test) | $57 | 61, 62 | 200 |
| Heterotrophic plate count | 8045 | Daily (2-day test) | $80 | 61, 62 | 200 |
Shellfish and Shellfish Growing Waters
| TEST PERFORMED | TEST # | PERFORMED | FEE | SPECIMEN COLLECTION & TRANSPORT |
REQUISITION |
|---|---|---|---|---|---|
| NSSP Thermotolerant (fecal) coliforms, A-1, growing water | 8710 | By appointment | $122 | 64 | 200 |
| NSSP Total coliforms, process water | 8720 | By appointment | $108 | 65 | 200 |
| NSSP Thermotolerant (fecal) coliforms, ocean shellfish | 8770 | By appointment | $254 | 200 | |
| NSSP Thermotolerant (fecal) coliforms, process shellfish | 8780 | By appointment | $244 | 200 | |
| Domoic acid, shellfish meat | 9005 | Scheduled (2-Day Test) | $191 | 200 |