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P codes: pathology and laboratory services

54 active HCPCS Level II codes from the P section (pathology and laboratory services), each with its own reference page built from the October 2026 CMS files. Of these, 1 is priced on the physician fee schedule, 8 are on the lab fee schedule, 41 have an OPPS payment rate, 52 have a published MUE, 1 is listed in an LCD or billing article and 35 appear in NCCI PTP pairs; 20 have enough joined data and search demand to be indexed.

Compiled from CMS files by the QuickIntell RCM Editorial Team · Data effective · Method: reference methodology · Report a data correction

Data currency: HCPCS Level II file: October 2026 (effective October 1, 2026); PFS relative value file: RVU26D, released August 26, 2026 (effective October 1, 2026); DMEPOS fee schedule: DME26-D (October 2026) (effective October 1, 2026); NCCI MUE tables: 2026 Q4 (effective October 1, 2026); NCCI PTP edits: v323r0 (2026 Q4) (effective October 1, 2026); OPPS Addendum B: October 2026 (effective October 1, 2026). Next CMS release: January 1, 2027 (quarterly update) for the HCPCS Level II file and DMEPOS fee schedule and NCCI MUE tables and NCCI PTP edits and OPPS Addendum B; RVU27A with the CY2027 PFS final rule, effective January 1, 2027 for the PFS relative value file.

Most searched codes in this range

Monthly US Google searches for the bare code (Google Ads, measured October 9, 2026) show which codes coders and billers look up most; search demand is one input to which pages are indexed and which the hub lists first.

P codes: pathology and laboratory services: codes with the most Google searches
CodeShort descriptorMedicare amountSearches / month
P3000Screen Pap by tech w md supv$18.54720
P2033Blood thymol turbidity$4.95210
P3001Screening Pap smear by phys$24.05140
P9016Rbc leukocytes reduced$184.91140
P9050Granulocytes, pheresis unit—140
P2031Hair analysis$4.9570
P9040Rbc leukoreduced irradiated$265.4170
P9603One-way allow prorated miles—70
P2038Blood mucoprotein$4.9540
P9010Whole blood for transfusion$189.8440

Codes in this range

The table lists the 20 codes in this range whose reference pages are indexed; the other 34 active codes follow as a list and keep their own pages for lookups. The Medicare amount is the national figure the page leads with.

P codes: pathology and laboratory services with an indexed reference page
CodeDescriptorMedicare amountBasisMUE (setting)OPPS SI
P2028Cephalin floculation, blood$4.95CLFS1 (practitioner)A
P2029Congo red, blood$4.95CLFS1 (practitioner)A
P2033Thymol turbidity, blood$4.95CLFS1 (practitioner)A
P2038Mucoprotein, blood (seromucoid) (medical necessity procedure)$4.95CLFS1 (practitioner)A
P3000Screening papanicolaou smear, cervical or vaginal, up to three smears, by technician under physician supervision$18.54CLFS1 (practitioner)A
P3001Screening papanicolaou smear, cervical or vaginal, up to three smears, requiring interpretation by physician$24.05PFS non-facility1 (practitioner)B
P9010Blood (whole), for transfusion, per unit$189.84OPPS rate4 (hospital outpatient)R
P9011Blood, split unit$155.84OPPS rate4 (hospital outpatient)R
P9016Red blood cells, leukocytes reduced, each unit$184.91OPPS rate12 (hospital outpatient)R
P9020Platelet rich plasma, each unit$559.79OPPS rate5 (hospital outpatient)R
P9021Red blood cells, each unit$150.57OPPS rate8 (hospital outpatient)R
P9035Platelets, pheresis, leukocytes reduced, each unit$511.59OPPS rate4 (hospital outpatient)R
P9037Platelets, pheresis, leukocytes reduced, irradiated, each unit$680.61OPPS rate4 (hospital outpatient)R
P9040Red blood cells, leukocytes reduced, irradiated, each unit$265.41OPPS rate8 (hospital outpatient)R
P9059Fresh frozen plasma between 8-24 hours of collection, each unit$73.77OPPS rate15 (hospital outpatient)R
P9060Fresh frozen plasma, donor retested, each unit$53.25OPPS rate4 (hospital outpatient)R
P9073Platelets, pheresis, pathogen-reduced, each unit$607.43OPPS rate4 (hospital outpatient)R
P9603Travel allowance one way in connection with medically necessary laboratory specimen collection drawn from home bound or nursing home bound patient; prorated miles actually travelled—none in these files300 (practitioner)A
P9604Travel allowance one way in connection with medically necessary laboratory specimen collection drawn from home bound or nursing home bound patient; prorated trip charge—none in these files2 (practitioner)A
P9612Catheterization for collection of specimen, single patient, all places of service$9.34CLFS1 (practitioner)A
Show the other 34 codes (pages not in search results)
  • P2031 Hair analysis
  • P7001 Culture bacterial urine
  • P9012 Cryoprecipitate each unit
  • P9017 Plasma 1 donor frz w/in 8 hr
  • P9019 Platelets, each unit
  • P9022 Washed red blood cells unit
  • P9023 Frozen plasma, pooled, sd
  • P9025 Plasma cryo redu path each
  • P9026 Cryo fib comp path redu each
  • P9027 Rbc o2 co2 reduced
  • P9031 Platelets leukocytes reduced
  • P9032 Platelets, irradiated
  • P9033 Platelets leukoreduced irrad
  • P9034 Platelets, pheresis
  • P9036 Platelet pheresis irradiated
  • P9038 Rbc irradiated
  • P9039 Rbc deglycerolized
  • P9043 Plasma protein fract,5%,50ml
  • P9044 Cryoprecipitatereducedplasma
  • P9048 Plasmaprotein fract,5%,250ml
  • P9050 Granulocytes, pheresis unit
  • P9051 Blood, l/r, cmv-neg
  • P9052 Platelets, hla-m, l/r, unit
  • P9053 Plt, pher, l/r cmv-neg, irr
  • P9054 Blood, l/r, froz/degly/wash
  • P9055 Plt, aph/pher, l/r, cmv-neg
  • P9056 Blood, l/r, irradiated
  • P9057 Rbc, frz/deg/wsh, l/r, irrad
  • P9058 Rbc, l/r, cmv-neg, irrad
  • P9070 Pathogen reduced plasma pool
  • P9071 Pathogen reduced plasma sing
  • P9099 Blood component/product NOC
  • P9100 Pathogen test for platelets
  • P9615 Urine specimen collect mult

How to read this table

The Medicare amount is a national figure from the October 2026 CMS files: for codes on the physician fee schedule it is the non-facility payment at the 2026 conversion factor, for DMEPOS items the national ceiling or, where competitive bidding sets the fees, the highest non-rural state fee, and for laboratory, hospital outpatient and ASC codes the published rate. Each code page shows the full breakdown, every modifier row and the state range. MUE is the Medically Unlikely Edit for the setting that bills the code, named in brackets: the DME supplier MUE for items on the DMEPOS fee schedule, the hospital outpatient MUE for codes with an OPPS payment rate but no national physician fee schedule amount, and the practitioner MUE otherwise; when that setting has no MUE, the next published one is shown. OPPS SI is the status indicator from Addendum B, which tells a hospital whether the code is paid separately, packaged, not payable under the outpatient system or, for status A, paid under another fee schedule or payment system. “None in these files” means none of the physician fee schedule, DMEPOS, lab, OPPS or ASC files lists a national amount; the code page says which payment rules apply. A dash means CMS publishes no value for that code in that file.

Where QuickIntell fits for P codes

QuickCode supports qualified coder review of units, modifiers and NCCI pairs before the claim leaves, and QuickAuth coordinates requirement checks and documentation for items and services that a coverage policy governs, each with human review.

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Frequently asked questions

How many P codes are there?

The October 2026 HCPCS Level II file has 54 active codes in this hub. 50 of them carry a national Medicare amount in a 2026 fee schedule or OPPS/ASC addendum; the highest is P9036 at $949.13 (OPPS rate).

Are P codes CPT codes?

No. They are HCPCS Level II codes, a letter followed by four digits, maintained by CMS; CPT codes are five-character codes maintained by the AMA. Both are reported in the same procedure-code field on Medicare claims.

How often do P codes change?

CMS updates the HCPCS Level II file every quarter (January, April, July and October) and publishes the fee schedules, MUE and NCCI tables on the same quarterly cycle; this hub is rebuilt from each release.

Sources

Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-10. Verify against the primary file before billing or contracting decisions. The reference methodology explains how each figure is computed from these files.

Disclaimer

Operational reference compiled from CMS publications. Amounts are Medicare national figures before locality and state adjustment; other payers differ. CPT codes appear as numbers only. Not legal, clinical or billing advice.

Found a figure that does not match the CMS file? Report a data correction with the CMS file and the value you expected; the request reaches the editorial team through the contact form.