CPT code 88363: Tissue preparation, archived tissue, each case2026 Medicare rate & RVUs in Baltimore area, MD

Report this service when a pathology laboratory prepares and conveys previously diagnosed, archived tissue for molecular analysis, counted once per case.

CMS RVU26DEffective Oct 1, 2026One payment locality50.5K Medicare services in 2024

In Baltimore area, MD, Medicare pays $23.79 for 88363 in the office and $15.91 when it’s performed in a hospital or facility.

$23.79Office (non-facility)
$15.91Hospital or facility
+4.8%vs the national office rate ($22.71)

Check a contract rate as a % of Medicare · 88363 nationwide

Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.

We’ll open 88363 for the payment locality that covers the ZIP.

On this page 11 sections
  1. Rate in Baltimore area, MD
  2. What 88363 covers
  3. Compared with other areas
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Related codes
  8. Rate history
  9. Where it applies
  10. Billing questions
  11. Sources

What 88363 covers

A pathology laboratory prepares tissue that was previously diagnosed and placed in its archive when a clinician later requests molecular testing. The work centers on locating the relevant archived material, preparing the requested tissue, and conveying it to the laboratory that will perform the molecular analysis. A pathologist or pathology laboratory staff may coordinate the preparation as part of diagnostic testing, including when the testing laboratory is separate from the archive holding the tissue.

Report one unit for each qualifying archived case, rather than counting individual slides or tissue pieces as separate cases. The record should identify the archived case, the request for molecular analysis, and the preparation and transfer of tissue. This service covers preparation and conveyance, not the molecular assay itself; code the assay separately when it is performed and separately reportable. CMS assigns this code work, practice-expense, and malpractice relative values, with practice-expense inputs that differ between office and facility settings.

This summary was written with AI assistance from CMS physician fee schedule data and checked against the CMS billing rules shown here. Rates on this page come directly from CMS files.

How Baltimore area, MD compares for 88363

Across 109 of 109 payment localities, the office rate for 88363 runs from $20.98 in Arkansas to $29.08 in Alaska. Baltimore area, MD pays $23.79. The RVUs are the same everywhere; the geographic indexes change the dollars.

88363 in Baltimore area, MD vs other payment areas
  1. Baltimore area, MD · this page$23.79
  2. Rest of Maryland · Maryland$22.90−$0.89
  3. Los Angeles, CA · California$24.81+$1.02
  4. Washington, DC area · District of Columbia$25.22+$1.43
  5. Miami, FL · Florida$24.14+$0.35
  6. Chicago, IL · Illinois$23.71−$0.08
  7. Manhattan, NY · New York$25.50+$1.71

Other areas in Maryland first, then benchmark localities. Bars start at $0.

Every other payment area

88363 in every other Medicare payment locality
Payment localityOfficeFacility
AlaskaAlaska$29.08$21.25
AlabamaAlabama$21.17$14.74
ArkansasArkansas$20.98$14.66
ArizonaArizona$22.31$15.19
Bakersfield, CACalifornia$23.64$15.59
Chico, CACalifornia$23.57$15.52
El Centro, CACalifornia$23.57$15.52
Fresno, CACalifornia$23.57$15.52

88363 rates by state

Office rate range in each state. Select a state to see its payment localities.

Explore a state

Local rates. Clear comparisons.

Hover or focus a tile to see its rate range. Select it to open the state’s fee schedule.

$20.98

$29.08

Color shows the midpoint of each state’s locality range.

View every state and territory as a table
88363 office rate range by state
State / territoryOffice rate rangeLocalities
AK$29.081
AL$21.171
AR$20.981
AZ$22.311
CA$23.57–$28.1529
CO$23.351
CT$23.861
DC$25.221
DE$22.591
FL$22.61–$24.143
GA$21.76–$23.042
GU$23.801
HI$23.801
IA$21.461
ID$21.561
IL$22.22–$23.714
IN$21.641
KS$21.421
KY$21.541
LA$21.53–$22.212
MA$23.30–$25.082
MD$22.90–$25.223
ME$21.66–$22.382
MI$21.93–$22.822
MN$22.531
MO$21.31–$22.233
MS$21.151
MT$22.711
NC$21.801
ND$22.321
NE$21.531
NH$23.041
NJ$24.18–$25.122
NM$22.021
NV$22.611
NY$22.01–$25.955
OH$21.851
OK$21.491
OR$22.47–$23.852
PA$21.85–$23.472
PR$22.811
RI$23.201
SC$21.851
SD$22.271
TN$21.491
TX$21.76–$23.248
UT$22.041
VA$22.35–$25.222
VI$22.811
VT$22.281
WA$23.24–$25.472
WI$21.831
WV$21.691
WY$22.541

See 88363 in every payment locality

How the 88363 rate is calculated

Each of 88363’s three RVUs is multiplied by a geographic index (GPCI) for the payment locality, added up, and multiplied by the conversion factor. Drag the indexes or enter a ZIP to see what moves the rate.

How the rate is built · 88363

RVUs × geographic indexes × conversion factor

Office or facility?

Work0.36

0.36 RVUs× 1.000 GPCI

Practice expense0.30

0.30 RVUs× 1.000 GPCI

Malpractice0.02

0.02 RVUs× 1.000 GPCI

Adjusted RVUs

0.6800

Conversion factor

$33.4009

Medicare rate

$22.71

Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.

The exact Baltimore area, MD inputs and CMS source lines

PPRRVU2026_Oct_nonQPP.csv

11,284

Code
88363
Physician work
0.36
Practice expense
0.30
Malpractice
0.02

GPCI2026.csv

60

Locality
Baltimore area, MD
Physician work
1.016
Practice expense
1.073
Malpractice
1.237
Office calculation for 88363 in Baltimore area, MD
ComponentRVULocality factorAdjusted
Physician work0.36× 1.0160.3658
Practice expense0.30× 1.0730.3219
Malpractice0.02× 1.2370.0247
Total RVUs0.7124
Conversion factor× 33.4009

Office rate, Baltimore area, MD$23.79

Office: (0.36 × 1.016 + 0.3 × 1.073 + 0.02 × 1.237) × $33.4009 = $23.79

Facility: (0.36 × 1.016 + 0.08 × 1.073 + 0.02 × 1.237) × $33.4009 = $15.91

Open 88363 in the RVU calculator

Payment rules and modifiers for 88363

88363 has no global surgery period, no multiple-procedure, bilateral or assistant-at-surgery adjustment, and no professional/technical split. What changes the payment is where the service happens: the place of service on the claim decides whether Medicare pays the office or the facility rate.

Place of service · 88363

Which rate does Medicare pay?

The POS code on the claim line (CMS-1500 box 24B).

POS 11 · non-facility rate · national

$22.71

Non-facility (office)
$22.71
Facility
$15.36

Higher because the practice carries its own overhead.

How 88363 has changed in Baltimore area, MD

88363 · Office / nonfacility

$23.79

Effective 2026-10-01

The base rate is $0.07 lower than on 2025-10-01, moving from $23.86 to $23.79 (0.3%).

It is unchanged from the immediately preceding available release, effective 2026-07-01.

Base rate by release · bars start at $0 · select a bar to compare

One bar per available release, ordered by effective date. Missing rates remain gaps. These comparisons hold the code, setting and locality identifiers constant; they do not isolate which policy or input caused a change.

What changed, release by release
  1. January 1, 2026

    RVU26A

    $23.86changed to$23.79

    • Conversion factor 32.3465 changed to 33.4009
    • Work RVU 0.37 changed to 0.36
    • Practice expense RVU 0.31 changed to 0.30
    • Work GPCI 1.020 changed to 1.016
    • Practice expense GPCI 1.078 changed to 1.073
    • Malpractice GPCI 1.309 changed to 1.237

    Held through RVU26B, RVU26C, RVU26D.

  2. January 1, 2025

    RVU25A

    $24.20changed to$23.86

    • Conversion factor 33.2875 changed to 32.3465
    • Practice expense RVU 0.30 changed to 0.31

    Held through RVU25B, RVU25C, RVU25D.

  3. March 9, 2024

    RVU24AR

    $23.80changed to$24.20

    • Conversion factor 32.7442 changed to 33.2875

    Held through RVU24B, RVU24C, RVU24D.

  4. January 1, 2024

    RVU24A

    $24.41changed to$23.80

    • Conversion factor 33.8872 changed to 32.7442
    • Practice expense RVU 0.29 changed to 0.30
    • Work GPCI 1.024 changed to 1.020
    • Practice expense GPCI 1.087 changed to 1.078
    • Malpractice GPCI 1.311 changed to 1.309
  5. January 1, 2023

    RVU23A

    $24.69changed to$24.41

    • Conversion factor 34.6062 changed to 33.8872
    • Practice expense RVU 0.28 changed to 0.29
    • Work GPCI 1.028 changed to 1.024
    • Practice expense GPCI 1.096 changed to 1.087
    • Malpractice GPCI 1.313 changed to 1.311

    Held through RVU23B, RVU23C, RVU23D.

  6. January 1, 2022

    RVU22A

    $24.90changed to$24.69

    • Conversion factor 34.8931 changed to 34.6062

    Held through RVU22B, RVU22C, RVU22D.

  7. January 1, 2021

    RVU21A

    $25.71changed to$24.90

    • Conversion factor 36.0896 changed to 34.8931
    • Work GPCI 1.026 changed to 1.028
    • Practice expense GPCI 1.095 changed to 1.096
    • Malpractice GPCI 1.304 changed to 1.313

    Held through RVU21B, RVU21C, RVU21D.

  8. January 1, 2020

    RVU20A

    $25.62changed to$25.71

    • Conversion factor 36.0391 changed to 36.0896
    • Work GPCI 1.023 changed to 1.026
    • Malpractice GPCI 1.295 changed to 1.304

    Held through RVU20B, RVU20C, RVU20D.

  9. January 1, 2019

    RVU19A

    $25.99changed to$25.62

    • Conversion factor 35.9996 changed to 36.0391
    • Practice expense RVU 0.29 changed to 0.28

    Held through RVU19B, RVU19C, RVU19D.

  10. January 1, 2018

    RVU18AR1

    $25.49changed to$25.99

    • Conversion factor 35.8887 changed to 35.9996
    • Practice expense RVU 0.28 changed to 0.29
    • Practice expense GPCI 1.096 changed to 1.095
    • Malpractice GPCI 1.238 changed to 1.295

    Held through RVU18B, RVU18C, RVU18D.

  11. January 1, 2017

    RVU17A

    $24.61changed to$25.49

    • Conversion factor 35.8043 changed to 35.8887
    • Practice expense RVU 0.26 changed to 0.28
    • Practice expense GPCI 1.097 changed to 1.096
    • Malpractice GPCI 1.181 changed to 1.238

    Held through RVU17B, RVU17C, RVU17D.

  12. January 1, 2016

    RVU16A

    $24.30changed to$24.61

    • Conversion factor 35.9335 changed to 35.8043
    • Practice expense RVU 0.25 changed to 0.26

    Held through RVU16B, RVU16C, RVU16D.

  13. July 1, 2015

    RVU15C

    $24.18changed to$24.30

    • Conversion factor 35.7547 changed to 35.9335

    Held through RVU15D.

  14. January 1, 2015

    RVU15A

    $23.51changed to$24.18

    • Conversion factor 35.8228 changed to 35.7547
    • Practice expense RVU 0.22 changed to 0.25
    • Malpractice RVU 0.03 changed to 0.02
    • Work GPCI 1.025 changed to 1.023
    • Malpractice GPCI 1.194 changed to 1.181

    Held through RVU15B.

  15. January 1, 2014

    RVU14A

    $61.56changed to$23.51

    • Conversion factor 34.0230 changed to 35.8228
    • Practice expense RVU 1.27 changed to 0.22
    • Work GPCI 1.027 changed to 1.025
    • Malpractice GPCI 1.206 changed to 1.194

    Held through RVU14B, RVU14C, RVU14D.

  16. January 1, 2013

    RVU13AR

    Earliest loaded release: $61.56

    Held through RVU13B, RVU13C, RVU13D.

Rates in every CMS release
Effective fromOfficeFacilityCMS release
2026-10-01$23.79$15.91RVU26D
2026-07-01$23.79$15.91RVU26C
2026-04-01$23.79$15.91RVU26B
2026-01-01$23.79$15.91RVU26A
2025-10-01$23.86$18.98RVU25D
2025-07-01$23.86$18.98RVU25C
2025-04-01$23.86$18.98RVU25B
2025-01-01$23.86$18.98RVU25A
2024-10-01$24.20$19.53RVU24D
2024-07-01$24.20$19.53RVU24C
2024-04-01$24.20$19.53RVU24B
2024-03-09$24.20$19.53RVU24AR
2024-01-01$23.80$19.22RVU24A
2023-10-01$24.41$20.36RVU23D
2023-07-01$24.41$20.36RVU23C
2023-04-01$24.41$20.36RVU23B
2023-01-01$24.41$20.36RVU23A
2022-10-01$24.69$20.52RVU22D
2022-07-01$24.69$20.52RVU22C
2022-04-01$24.69$20.52RVU22B
2022-01-01$24.69$20.52RVU22A
2021-10-01$24.90$21.07RVU21D
2021-07-01$24.90$21.07RVU21C
2021-04-01$24.90$21.07RVU21B
2021-01-01$24.90$21.07RVU21A
2020-10-01$25.71$21.75RVU20D
2020-07-01$25.71$21.75RVU20C
2020-04-01$25.71$21.75RVU20B
2020-01-01$25.71$21.75RVU20A
2019-10-01$25.62$21.68RVU19D
2019-07-01$25.62$21.68RVU19C
2019-04-01$25.62$21.68RVU19B
2019-01-01$25.62$21.68RVU19A
2018-10-01$25.99$22.05RVU18D
2018-07-01$25.99$22.05RVU18C
2018-04-01$25.99$22.05RVU18B
2018-01-01$25.99$22.05RVU18AR1
2017-10-01$25.49$21.55RVU17D
2017-07-01$25.49$21.55RVU17C
2017-04-01$25.49$21.55RVU17B
2017-01-01$25.49$21.55RVU17A
2016-10-01$24.61$21.08RVU16D
2016-07-01$24.61$21.08RVU16C
2016-04-01$24.61$21.08RVU16B
2016-01-01$24.61$21.08RVU16A
2015-10-01$24.30$20.76RVU15D
2015-07-01$24.30$20.76RVU15C
2015-04-01$24.18$20.65RVU15B
2015-01-01$24.18$20.65RVU15A
2014-10-01$23.51$20.37RVU14D
2014-07-01$23.51$20.37RVU14C
2014-04-01$23.51$20.37RVU14B
2014-01-01$23.51$20.37RVU14A
2013-10-01$61.56$20.50RVU13D
2013-07-01$61.56$20.50RVU13C
2013-04-01$61.56$20.50RVU13B
2013-01-01$61.56$20.50RVU13AR

Price 88363 for an earlier date of service

Where the Baltimore area, MD rate applies

Baltimore area, MD is a Medicare payment area, not a city. Our Census mapping connects it to 100 cities and communities in Maryland. Some span more than one payment area; confirm with the service ZIP.

  • Baltimore
  • Aberdeen
  • Aberdeen Proving Ground
  • Abingdon
  • Annapolis
  • Annapolis Neck
  • Arbutus
  • Arden on the Severn

Browse all communities in Maryland

88363 billing questions

When is 88363 appropriate instead of an in situ hybridization code?

Use 88363 for preparing and conveying previously diagnosed, archived tissue for molecular analysis. In situ hybridization codes describe the assay performed on tissue, not this archive-preparation service.

How many units should be reported?

The code is reported per case. Do not count each slide or tissue piece as a separate case.

Does 88363 include the molecular test?

No. It describes preparation and conveyance of archived tissue; the molecular assay is a separate service when performed and separately reportable.

What documentation supports reporting 88363?

Document the previously diagnosed archived case, the request for molecular analysis, and the preparation and conveyance of tissue for that analysis.

Where these rates come from

FeeBase calculates base physician payments from CMS work, practice-expense and malpractice RVUs, adjusted by each locality’s geographic indexes and the conversion factor. Services without a published rate are labeled, never given a made-up amount. Amounts are Medicare allowed amounts before claim adjustments: not a patient’s bill or a commercial rate.

CMS RVU26D · effective Oct 1, 2026 through the day before Jan 1, 2027

Show the CMS file lines behind this rate
RVUs for 88363PPRRVU2026_Oct_nonQPP.csv, line 11,284 (RVU26D)
Geographic factors for Baltimore area, MDGPCI2026.csv, line 60 (RVU26D)

Open CMS sourceHow we calculate rates

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