Billing code 88381: MicrodissectionMedicare rate & RVUs

Reports manual microscopic separation of a target cell population from tissue, commonly to prepare tumor-rich material for molecular analysis.

CMS RVU26DEffective Oct 1, 2026109 payment localities86.7K Medicare services in 2024

Medicare pays $187.71 for 88381 nationally in the office. Local office rates run $163.12–$263.40.

Medicare rate · 88381

Microdissection

Swap in your local Medicare rate.

Work RVUs
0.52
Total RVUs
5.62
Global days
XXX

National rate · 2026

$187.71

Office setting, before claim adjustments.

See every locality for 88381 → · Billed by an NP, PA or therapist? →

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

On this page 10 sections
  1. Medicare rate
  2. What 88381 covers
  3. By payment locality
  4. Rate map
  5. How it’s calculated
  6. Payment rules
  7. Similar codes
  8. Related codes
  9. Billing questions
  10. Sources

What 88381 covers

A pathology laboratory uses manual microscopic techniques to isolate a selected area or cell population from a tissue specimen. For example, a technologist may separate tumor-rich regions from surrounding non-tumor tissue in a prepared section before molecular testing. The service is distinct from gross trimming: the target is selected at the microscopic level, often with pathologist guidance, rather than by cutting the specimen at the bench based only on its gross appearance.

Report 88381 for the manual microdissection work, not for the downstream molecular assay itself. Documentation should identify the tissue and target population, support why microscopic separation was performed, and show that the work was manual rather than laser-based. CMS recognizes professional and technical components: the professional portion may be reported with modifier 26, the technical portion with modifier TC, and billing without either modifier represents the global service.

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.

Where 88381 pays more and less

The same RVUs, adjusted for each area’s costs. Open a locality for its calculation, history and nearby areas.

109 payment localities

$163.12 to $263.40

$163.12$213.26$263.40
One dot per payment locality, office / nonfacility. Hover a dot to see the locality; select it to open that rate.

109 of 109 payment localities

88381 office and facility rates by payment locality
Payment localityOfficeFacility
Alabama$165.90Unavailable
Alaska*$206.61Unavailable
Arizona$182.24Unavailable
Arkansas$163.12Unavailable
Atlanta$190.80Unavailable
Austin$197.34Unavailable
Bakersfield$203.58Unavailable
Baltimore/Surr. Cntys$200.70Unavailable
Beaumont$172.41Unavailable
Brazoria$185.97Unavailable

88381 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.

$163.12

$233.42

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

View every state and territory as a table
88381 office rate range by state
State / territoryOffice rate rangeLocalities
AK$206.611
AL$165.901
AR$163.121
AZ$182.241
CA$203.43–$263.4029
CO$198.351
CT$201.401
DC$218.861
DE$185.611
FL$181.13–$197.183
GA$169.82–$190.802
GU$210.121
HI$210.121
IA$172.371
ID$173.341
IL$173.98–$193.684
IN$174.541
KS$170.691
KY$168.851
LA$168.25–$177.992
MA$196.59–$220.962
MD$189.77–$218.863
ME$173.59–$185.582
MI$173.25–$182.962
MN$191.431
MO$164.39–$179.623
MS$163.831
MT$187.711
NC$175.811
ND$186.721
NE$173.691
NH$194.421
NJ$204.09–$215.912
NM$174.051
NV$187.601
NY$178.78–$222.145
OH$173.051
OK$169.291
OR$186.54–$206.292
PA$173.79–$195.262
PR$189.541
RI$193.431
SC$174.641
SD$186.601
TN$171.591
TX$172.41–$197.348
UT$177.421
VA$184.35–$218.862
VI$189.541
VT$185.201
WA$196.48–$226.562
WI$179.471
WV$166.341
WY$187.281

How the 88381 rate is calculated

Each of 88381’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 · 88381

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 0.52Practice expense 5.05Malpractice 0.05

5.6200 adjusted RVUs×$33.4009 conversion factor=$187.71

All indexes start at 1.000 (the national rate). Enter a ZIP or drag a slider.

Payment rules and modifiers for 88381

The CMS indicators that decide how 88381 is paid alongside other services.

CMS payment indicators · 88381

Microdissection

RuleCMS valueWhat it means
Global periodXXXThe global surgery concept doesn’t apply.
Multiple procedures0No multiple-procedure reduction.
Bilateral (modifier 50)0The 150% bilateral adjustment doesn’t apply.
Assistant at surgery (80/81/82/AS)0Not paid without supporting documentation.
Co-surgeons (62)0Not permitted.
Team surgery (66)0Not permitted.
Professional/technical1Diagnostic test with separate professional (26) and technical (TC) components.

What modifiers do to the payment

Modifier 26 · payment effect

With and without the modifier

88381 without 26 · national office

$187.71

Microdissection

88381-26 · Professional component

$22.04

Pays only the interpretation and report.

When to use modifier 26

88381 compared with similar codes

Compare codes

88381 vs 88380 vs 88387 vs 88363: national Medicare rates

Swap in your local Medicare rate.

  • 88381
    Microdissection · 0.52 wRVU
    $187.71
  • 88380
    Tissue microdissection · 1.11 wRVU
    $117.57−$70.14
  • 88387
    Tissue preparation · 0.6 wRVU
    $32.73−$154.98
  • 88363
    Tissue preparation · 0.36 wRVU
    $22.71−$165.00

How to choose

88380Tissue microdissection
Both involve microdissection, but 88381 is for manual separation and 88380 is for laser-based separation.
88387Tissue preparation
88387 covers macroscopic examination and preparation of tissue for molecular analysis. Choose 88381 when the target is separated through microscopic, manual work.
88363Tissue preparation
88363 concerns examination and selection of retrieved archived tissue for molecular analysis; 88381 describes manual microscopic separation of a tissue target.

88381 billing questions

When should 88381 be chosen instead of 88380?

Use 88381 when the target tissue is separated manually under microscopic guidance. Use 88380 when laser microdissection is performed.

Does 88381 include the molecular test?

No. It represents the manual tissue preparation, not the subsequent molecular analysis; report a separately performed assay under its applicable code.

How are the professional and technical portions reported?

Modifier 26 identifies the professional portion, and modifier TC identifies the technical portion. Reporting without either modifier represents the global service.

What documentation supports reporting 88381?

Document the specimen, the target cell population or tissue area, and the manual microscopic separation performed. The record should make clear that this was not laser microdissection or gross tissue trimming.

Is 88381 used for gross selection of tissue?

No. Manual microdissection targets tissue at the microscopic level; gross examination and preparation for molecular analysis is a different service.

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 88381PPRRVU2026_Oct_nonQPP.csv, line 11,320 (RVU26D)

Open CMS sourceHow we calculate rates

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