Chlamydia test cost in Philadelphia, PA
In Philadelphia-Camden-Wilmington, PA-NJ-DE-MD, 22 hospitals list a cash price for chlamydia test by nucleic acid amplification (NAAT, PCR-type): from $19.20 to $718.58, with a median of $65.20. The lowest listed price is at The Bryn Mawr Hospital and 4 other hospitals — $46.00 less than the median here. Across Pennsylvania, the median is $195.60 at 64 hospitals.
Cash prices at 22 facilities across 18 cities for code 87491, as an outpatient — the setting a self-pay patient normally buys. Collected Sep 23, 2026; the hospital files themselves were last updated between Mar 24, 2026 and Sep 1, 2026.
Lowest$19.20The Bryn Mawr Hospital + 4 more
Median$65.20half pay less
Highest$718.58in this market
Difference37.4×highest vs lowest
Where each hospital's price falls
Each dot is one hospital's cash price on a scale from the lowest to the highest in Philadelphia-Camden-Wilmington, PA-NJ-DE-MD.
median
Lowest $19.20Highest $1,129.05
Hospitals, cheapest first
| Hospital | Cash price | List price | Insurers pay | Off list | File date |
|---|---|---|---|---|---|
| The Bryn Mawr Hospital lowest Bryn Mawr, PA · (610) 526-3000 Hc Chlamydia,Rna,Tma Rectal | $19.20 | $48.00 | — | 60% | — source file |
| Lankenau Medical Center lowest Wynnewood, PA · (610) 645-2000 Hc Chlamydia,Rna,Tma Rectal | $19.20 | $48.00 | — | 60% | Apr 1, 2026 source file |
| Bryn Mawr Rehabilitation Hospital lowest Malvern, PA Hc Chlamydia,Rna,Tma Rectal | $19.20 | $48.00 | — | 60% | — source file |
| Riddle Memorial Hospital lowest Media, PA · (610) 566-9400 Hc Chlamydia,Rna,Tma Rectal | $19.20 | $48.00 | — | 60% | Apr 1, 2026 source file |
| Paoli Hospital lowest Paoli, PA · (610) 648-1000 Hc Chlamydia,Rna,Tma Rectal | $19.20 | $48.00 | — | 60% | Apr 1, 2026 source file |
| Paoli Hospital Paoli, PA · (610) 648-1000 Hc Chlamyia Rna Tma Throat | $22.00 | $55.00 | — | 60% | Apr 1, 2026 source file |
| Riddle Memorial Hospital Media, PA · (610) 566-9400 Hc Chlamyia Rna Tma Throat | $22.00 | $55.00 | — | 60% | Apr 1, 2026 source file |
| Lankenau Medical Center Wynnewood, PA · (610) 645-2000 Hc Chlamyia Rna Tma Throat | $22.00 | $55.00 | — | 60% | Apr 1, 2026 source file |
| Bryn Mawr Rehabilitation Hospital Malvern, PA Hc Chlamyia Rna Tma Throat | $22.00 | $55.00 | — | 60% | — source file |
| The Bryn Mawr Hospital Bryn Mawr, PA · (610) 526-3000 Hc Chlamyia Rna Tma Throat | $22.00 | $55.00 | — | 60% | — source file |
| Lower Bucks Hospital Bristol, PA · (215) 785-9200 Hc Chylmd Trach, Dna, Amp Probe | $35.00 | $178.00 | $23.19–$151.64 | 80% | Sep 1, 2026 source file |
| Roxborough Memorial Hospital Philadelphia, PA · (215) 483-9900 Hc Chylmd Trach, Dna, Amp Probe | $35.00 | $242.44 | $23.19–$235.17 | 86% | Sep 1, 2026 source file |
| Roxborough Memorial Hospital Philadelphia, PA · (215) 483-9900 Hc Chylmd Trach, Dna, Amp Probe | $35.00 | $242.44 | $23.19–$235.17 | 86% | Sep 1, 2026 source file |
| Paoli Hospital Paoli, PA · (610) 648-1000 Hc Ss Ct/Ng Trach: Chlamydia Trach,Amp Probe | $45.60 | $114.00 | — | 60% | Apr 1, 2026 source file |
| Riddle Memorial Hospital Media, PA · (610) 566-9400 Hc Ss Ct/Ng Trach: Chlamydia Trach,Amp Probe | $45.60 | $114.00 | — | 60% | Apr 1, 2026 source file |
| Lankenau Medical Center Wynnewood, PA · (610) 645-2000 Hc Ss Ct/Ng Trach: Chlamydia Trach,Amp Probe | $45.60 | $114.00 | — | 60% | Apr 1, 2026 source file |
| The Bryn Mawr Hospital Bryn Mawr, PA · (610) 526-3000 Hc Ss Ct/Ng Trach: Chlamydia Trach,Amp Probe | $45.60 | $114.00 | — | 60% | — source file |
| Bryn Mawr Rehabilitation Hospital Malvern, PA Hc Ss Ct/Ng Trach: Chlamydia Trach,Amp Probe | $45.60 | $114.00 | — | 60% | — source file |
| Virtua Memorial Hospital Mount Holly, NJ · (609) 267-0700 HC Mdx Chlamydia | $58.40 | $584.00 | $1.59–$395.00 | 90% | — source file |
| West Jersey Hospital Voorhees, NJ · (856) 247-3000 HC Mdx Chlamydia | $58.40 | $584.00 | $1.59–$395.00 | 90% | — source file |
| Virtua Willingboro Hospital Willinboro, NJ · (609) 835-2900 HC Mdx Chlamydia | $58.40 | $584.00 | $1.59–$395.00 | 90% | — source file |
| West Jersey Hospital Voorhees, NJ · (856) 247-3000 HC Mdx Chlamydia | $58.40 | $584.00 | $1.59–$395.00 | 90% | — source file |
| Virtua Our Lady of Lourdes Camden, NJ · (856) 886-5373 HC Mdx Chlamydia | $58.40 | $584.00 | $1.59–$395.00 | 90% | — source file |
| Nemours Children's Hospital Wilmington, DE · (302) 651-4000 Chlamydia/Neisseria Gonorrhoeae Rna/Tma Component 1 Referred | $72.00 | $72.00 | — | — | — source file |
| Nemours Children's Hospital Wilmington, DE · (302) 651-4000 Chlamydia/Neisseria Gonorrhoeae Rna/Tma Component 1 Referred | $72.00 | $72.00 | — | — | — source file |
| The Bryn Mawr Hospital Bryn Mawr, PA · (610) 526-3000 Hc Hc Chlamydia/Gc,Rna,Tma Rectal | $76.00 | $190.00 | — | 60% | — source file |
| Lankenau Medical Center Wynnewood, PA · (610) 645-2000 Hc Hc Chlamydia/Gc,Rna,Tma Throat | $76.00 | $190.00 | — | 60% | Apr 1, 2026 source file |
| Lankenau Medical Center Wynnewood, PA · (610) 645-2000 Hc Hc Chlamydia/Gc,Rna,Tma Rectal | $76.00 | $190.00 | — | 60% | Apr 1, 2026 source file |
| Paoli Hospital Paoli, PA · (610) 648-1000 Hc Hc Chlamydia/Gc,Rna,Tma Throat | $76.00 | $190.00 | — | 60% | Apr 1, 2026 source file |
| Paoli Hospital Paoli, PA · (610) 648-1000 Hc Hc Chlamydia/Gc,Rna,Tma Rectal | $76.00 | $190.00 | — | 60% | Apr 1, 2026 source file |
| Riddle Memorial Hospital Media, PA · (610) 566-9400 Hc Hc Chlamydia/Gc,Rna,Tma Throat | $76.00 | $190.00 | — | 60% | Apr 1, 2026 source file |
| Riddle Memorial Hospital Media, PA · (610) 566-9400 Hc Hc Chlamydia/Gc,Rna,Tma Rectal | $76.00 | $190.00 | — | 60% | Apr 1, 2026 source file |
| The Bryn Mawr Hospital Bryn Mawr, PA · (610) 526-3000 Hc Hc Chlamydia/Gc,Rna,Tma Throat | $76.00 | $190.00 | — | 60% | — source file |
| Bryn Mawr Rehabilitation Hospital Malvern, PA Hc Hc Chlamydia/Gc,Rna,Tma Throat | $76.00 | $190.00 | — | 60% | — source file |
| Bryn Mawr Rehabilitation Hospital Malvern, PA Hc Hc Chlamydia/Gc,Rna,Tma Rectal | $76.00 | $190.00 | — | 60% | — source file |
| Nemours Children's Hospital Wilmington, DE · (302) 651-4000 Chlamydia Trachomatis Dna Probe Quest | $78.00 | $78.00 | — | — | — source file |
| Nemours Children's Hospital Wilmington, DE · (302) 651-4000 Chlamydia Trachomatis Dna Probe Quest | $78.00 | $78.00 | — | — | — source file |
| Bryn Mawr Rehabilitation Hospital Malvern, PA Hc Chlamydia;Amp Probe | $101.60 | $254.00 | — | 60% | — source file |
| Bryn Mawr Rehabilitation Hospital Malvern, PA Hc Cgrnaq Chlamydia Trach | $101.60 | $254.00 | — | 60% | — source file |
| Lankenau Medical Center Wynnewood, PA · (610) 645-2000 Hc Chlamydia;Amp Probe | $101.60 | $254.00 | — | 60% | Apr 1, 2026 source file |
| Lankenau Medical Center Wynnewood, PA · (610) 645-2000 Hc Cgrnaq Chlamydia Trach | $101.60 | $254.00 | — | 60% | Apr 1, 2026 source file |
| Paoli Hospital Paoli, PA · (610) 648-1000 Hc Cgrnaq Chlamydia Trach | $101.60 | $254.00 | — | 60% | Apr 1, 2026 source file |
| Paoli Hospital Paoli, PA · (610) 648-1000 Hc Chlamydia;Amp Probe | $101.60 | $254.00 | — | 60% | Apr 1, 2026 source file |
| The Bryn Mawr Hospital Bryn Mawr, PA · (610) 526-3000 Hc Cgrnaq Chlamydia Trach | $101.60 | $254.00 | — | 60% | — source file |
| Riddle Memorial Hospital Media, PA · (610) 566-9400 Hc Cgrnaq Chlamydia Trach | $101.60 | $254.00 | — | 60% | Apr 1, 2026 source file |
| The Bryn Mawr Hospital Bryn Mawr, PA · (610) 526-3000 Hc Chlamydia;Amp Probe | $101.60 | $254.00 | — | 60% | — source file |
| Riddle Memorial Hospital Media, PA · (610) 566-9400 Hc Chlamydia;Amp Probe | $101.60 | $254.00 | — | 60% | Apr 1, 2026 source file |
| Inspira Medical Center Mullica Hill Mullica Hill, NJ Ct, Ng, Trich vag by NAA | $118.85 | $118.85 | $24.03–$161.37 | — | Mar 24, 2026 source file |
| Inspira Medical Center Mullica Hill Mullica Hill, NJ CHLAMYDIA | $118.85 | $118.85 | $24.03–$161.37 | — | Mar 24, 2026 source file |
| Inspira Medical Center Mullica Hill Mullica Hill, NJ Chlamydia RNA, Throat-Q | $118.85 | $118.85 | $24.03–$161.37 | — | Mar 24, 2026 source file |
| Inspira Medical Center Elmer Elmer, NJ · (856) 363-1000 NuSwab BV, Ct/GC | $118.85 | $118.85 | $24.03–$161.37 | — | Mar 24, 2026 source file |
| Inspira Medical Center Elmer Elmer, NJ · (856) 363-1000 Ct, Ng, Trich vag by NAA | $118.85 | $118.85 | $24.03–$161.37 | — | Mar 24, 2026 source file |
| Inspira Medical Center Elmer Elmer, NJ · (856) 363-1000 CHLAMYDIA | $118.85 | $118.85 | $24.03–$161.37 | — | Mar 24, 2026 source file |
| Inspira Medical Center Elmer Elmer, NJ · (856) 363-1000 Chlamydia RNA, Throat-Q | $118.85 | $118.85 | $24.03–$161.37 | — | Mar 24, 2026 source file |
| Inspira Medical Center Mannington Salem, NJ NuSwab BV, Ct/GC | $118.85 | $118.85 | $20.03–$161.37 | — | Mar 24, 2026 source file |
| Inspira Medical Center Mannington Salem, NJ NuSwab Vaginitis Plus (VG+) | $118.85 | $118.85 | $20.03–$161.37 | — | Mar 24, 2026 source file |
| Inspira Medical Center Mannington Salem, NJ Ct, Ng, Trich vag by NAA | $118.85 | $118.85 | $20.03–$161.37 | — | Mar 24, 2026 source file |
| Inspira Medical Center Mannington Salem, NJ CHLAMYDIA | $118.85 | $118.85 | $20.03–$161.37 | — | Mar 24, 2026 source file |
| Inspira Medical Center Mannington Salem, NJ Chlamydia RNA, Throat-Q | $118.85 | $118.85 | $20.03–$161.37 | — | Mar 24, 2026 source file |
| Inspira Medical Center Elmer Elmer, NJ · (856) 363-1000 NuSwab Vaginitis Plus (VG+) | $118.85 | $118.85 | $24.03–$161.37 | — | Mar 24, 2026 source file |
| Inspira Health Center Woodbury Woodbury, NJ NuSwab BV, Ct/GC | $118.85 | $118.85 | $22.73–$161.37 | — | Mar 24, 2026 source file |
| Inspira Health Center Woodbury Woodbury, NJ CHLAMYDIA | $118.85 | $118.85 | $22.73–$161.37 | — | Mar 24, 2026 source file |
| Inspira Health Center Woodbury Woodbury, NJ Ct, Ng, Trich vag by NAA | $118.85 | $118.85 | $22.73–$161.37 | — | Mar 24, 2026 source file |
| Inspira Health Center Woodbury Woodbury, NJ Chlamydia RNA, Throat-Q | $118.85 | $118.85 | $22.73–$161.37 | — | Mar 24, 2026 source file |
| Inspira Health Center Woodbury Woodbury, NJ NuSwab Vaginitis Plus (VG+) | $118.85 | $118.85 | $22.73–$161.37 | — | Mar 24, 2026 source file |
| Inspira Medical Center Mullica Hill Mullica Hill, NJ NuSwab Vaginitis Plus (VG+) | $118.85 | $118.85 | $24.03–$161.37 | — | Mar 24, 2026 source file |
| Inspira Medical Center Mullica Hill Mullica Hill, NJ NuSwab BV, Ct/GC | $118.85 | $118.85 | $24.03–$161.37 | — | Mar 24, 2026 source file |
| The Bryn Mawr Hospital Bryn Mawr, PA · (610) 526-3000 Hc Ss Chlamydia Trach, Rna Amp Probe | $120.00 | $300.00 | — | 60% | — source file |
| Lankenau Medical Center Wynnewood, PA · (610) 645-2000 Hc Ss Chlamydia Trach, Rna Amp Probe | $120.00 | $300.00 | — | 60% | Apr 1, 2026 source file |
| Paoli Hospital Paoli, PA · (610) 648-1000 Hc Ss Chlamydia Trach, Rna Amp Probe | $120.00 | $300.00 | — | 60% | Apr 1, 2026 source file |
| Riddle Memorial Hospital Media, PA · (610) 566-9400 Hc Ss Chlamydia Trach, Rna Amp Probe | $120.00 | $300.00 | — | 60% | Apr 1, 2026 source file |
| Bryn Mawr Rehabilitation Hospital Malvern, PA Hc Ss Chlamydia Trach, Rna Amp Probe | $120.00 | $300.00 | — | 60% | — source file |
| Shriners Childrens - Philadelphia Philadelphia, PA · (215) 430-4000 CHLMYD TRACH DNA AMP PROBE | $185.01 | $185.01 | $23.19–$66.11 | — | — source file |
| St Mary Medical Center Langhorne, PA · (215) 750-2003 HC Quest 11363 Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis | $228.15 | $351.00 | $26.67–$425.31 | 35% | Mar 31, 2026 source file |
| St Mary Medical Center Langhorne, PA · (215) 750-2003 HC Quest 10120 Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis | $228.15 | $351.00 | $26.67–$425.31 | 35% | Mar 31, 2026 source file |
| St Mary Medical Center Langhorne, PA · (215) 750-2003 HC Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis Urine | $228.15 | $351.00 | $26.67–$425.31 | 35% | Mar 31, 2026 source file |
| St Mary Medical Center Langhorne, PA · (215) 750-2003 HC Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis | $228.15 | $351.00 | $26.67–$425.31 | 35% | Mar 31, 2026 source file |
| St Mary Medical Center Langhorne, PA · (215) 750-2003 HC Quest Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis Pharyngeal | $228.15 | $351.00 | $26.67–$425.31 | 35% | Mar 31, 2026 source file |
| St. Francis Hospital Wilmington, DE · (302) 421-4100 HC Quest 70051 Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis | $237.25 | $365.00 | $34.39–$520.47 | 35% | Mar 31, 2026 source file |
| St. Francis Hospital Wilmington, DE · (302) 421-4100 HC Quest 10120 Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis | $249.60 | $384.00 | $34.39–$520.47 | 35% | Mar 31, 2026 source file |
| St. Francis Hospital Wilmington, DE · (302) 421-4100 HC Quest 16506 Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis | $249.60 | $384.00 | $34.39–$520.47 | 35% | Mar 31, 2026 source file |
| St. Francis Hospital Wilmington, DE · (302) 421-4100 HC Quest 11363 Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis | $249.60 | $384.00 | $34.39–$520.47 | 35% | Mar 31, 2026 source file |
| St. Francis Hospital Wilmington, DE · (302) 421-4100 HC Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis | $249.60 | $384.00 | $34.39–$520.47 | 35% | Mar 31, 2026 source file |
| St. Francis Hospital Wilmington, DE · (302) 421-4100 HC Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis Urine | $249.60 | $384.00 | $34.39–$520.47 | 35% | Mar 31, 2026 source file |
| Mercy Fitzgerald Hospital Darby, PA · (215) 237-4000 HC Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis Urine | $266.50 | $410.00 | $31.31–$491.30 | 35% | Mar 31, 2026 source file |
| Nazareth Hospital Philadelphia, PA · (215) 335-6000 HC Warde 3620200 Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis Thin Prep | $266.50 | $410.00 | $33.63–$628.48 | 35% | Mar 31, 2026 source file |
| Mercy Fitzgerald Hospital Darby, PA · (215) 237-4000 HC Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis | $266.50 | $410.00 | $31.31–$491.30 | 35% | Mar 31, 2026 source file |
| Mercy Fitzgerald Hospital Darby, PA · (215) 237-4000 HC Warde 3000499 Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis | $266.50 | $410.00 | $31.31–$491.30 | 35% | Mar 31, 2026 source file |
| Mercy Fitzgerald Hospital Darby, PA · (215) 237-4000 HC Warde 3723400 Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis Urogenital | $266.50 | $410.00 | $31.31–$491.30 | 35% | Mar 31, 2026 source file |
| Mercy Fitzgerald Hospital Darby, PA · (215) 237-4000 HC Warde 3435200 Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis Pap Vial | $266.50 | $410.00 | $31.31–$491.30 | 35% | Mar 31, 2026 source file |
| Mercy Fitzgerald Hospital Darby, PA · (215) 237-4000 HC Quest 11363 Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis | $266.50 | $410.00 | $31.31–$491.30 | 35% | Mar 31, 2026 source file |
| Mercy Fitzgerald Hospital Darby, PA · (215) 237-4000 HC Warde 3620200 Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis Thin Prep | $266.50 | $410.00 | $31.31–$491.30 | 35% | Mar 31, 2026 source file |
| Mercy Fitzgerald Hospital Darby, PA · (215) 237-4000 HC Arup 2006258 Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis | $266.50 | $410.00 | $31.31–$491.30 | 35% | Mar 31, 2026 source file |
| Mercy Fitzgerald Hospital Darby, PA · (215) 237-4000 HC Quest 70051 Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis | $266.50 | $410.00 | $31.31–$491.30 | 35% | Mar 31, 2026 source file |
| Mercy Fitzgerald Hospital Darby, PA · (215) 237-4000 HC Quest 10120 Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis | $266.50 | $410.00 | $31.31–$491.30 | 35% | Mar 31, 2026 source file |
| Nemours Children's Hospital Wilmington, DE · (302) 651-4000 Chlamydia Trachomatis Misc Site Nucleic Acid Amplification Gen-Probe | $306.00 | $306.00 | — | — | — source file |
| Nemours Children's Hospital Wilmington, DE · (302) 651-4000 Chlamydia Trachomatis Nucleic Acid Amplification Gen-Probe Referred | $306.00 | $306.00 | — | — | — source file |
| Nemours Children's Hospital Wilmington, DE · (302) 651-4000 Chlamydia Trachomatis Misc Site Nucleic Acid Amplification Gen-Probe | $306.00 | $306.00 | — | — | — source file |
| Nemours Children's Hospital Wilmington, DE · (302) 651-4000 Chlamydia Trachomatis Nucleic Acid Amplification Gen-Probe Referred | $306.00 | $306.00 | — | — | — source file |
| Nazareth Hospital Philadelphia, PA · (215) 335-6000 HC Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis | $335.40 | $516.00 | $33.63–$628.48 | 35% | Mar 31, 2026 source file |
| Nazareth Hospital Philadelphia, PA · (215) 335-6000 HC Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis Urine | $335.40 | $516.00 | $33.63–$628.48 | 35% | Mar 31, 2026 source file |
| The Children's Hospital of Philadelphia Philadelphia, PA · (215) 590-1000 Chlamydia Trachomatis, Amp Prb | $718.58 | $718.58 | $31.31–$646.72 | — | — source file |
| The Children's Hospital of Philadelphia Philadelphia, PA · (215) 590-1000 C.Trachomatis-Arup | $718.58 | $718.58 | $31.31–$646.72 | — | — source file |
| St Mary Medical Center Langhorne, PA · (215) 750-2003 HC Infectious Agent Nucleic Acid Amplified Probe Chlamydia Trachomatis | $1,129.05 | — | $26.67–$425.31 | — | Mar 31, 2026 source file |
Outpatient: lowest $19.20, median $65.20, highest $718.58 — a 37.4× difference within the same market.
As an inpatient, the same code is billed by 14 facilities here, median $118.85. Inpatient and outpatient prices are not comparable and are kept on separate pages: the inpatient charge covers admission, not the same purchase.
Cash or insurance?
At 14 of 16 hospitals that publish insurer rates for this code here, the cash price is below the highest rate a health plan has negotiated, and at none is it below every plan's rate. If you have insurance but have not met your deductible, you usually pay your plan's negotiated rate, which falls somewhere in the "Insurers pay" column. Paying cash can cost less, but a cash payment usually does not count toward your deductible. Ask the hospital for both numbers before you book.
What it is
This test looks for the genetic material of Chlamydia trachomatis using a nucleic acid amplification test (NAAT), the most accurate type of chlamydia test. It is run on a urine sample or a swab and is used for routine screening and when there are symptoms.
What the price covers
The price usually covers the chlamydia test only. The visit, the sample collection and a gonorrhea test on the same sample (87591) are usually billed separately.