Billing code 88367: ISH analysisMedicare rate & RVUs

Automated morphometric analysis of in situ hybridization signals in tissue helps quantify or assess a molecular finding, such as tumor gene amplification.

CMS RVU26DEffective Oct 1, 2026109 payment localities4.6K Medicare services in 2024

Medicare pays $104.88 for 88367 nationally in the office. Local office rates run $93.20–$142.76.

Medicare rate · 88367

ISH analysis

Swap in your local Medicare rate.

Work RVUs
0.71
Total RVUs
3.14
Global days
XXX

National rate · 2026

$104.88

Office setting, before claim adjustments.

See every locality for 88367 → · 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 88367 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 88367 covers

This service covers automated morphometric analysis of in situ hybridization signals in a tissue specimen. A pathology laboratory uses imaging equipment and software to assess signal patterns, while a pathologist interprets the findings in the clinical and morphologic context. A familiar application is evaluating HER2 gene amplification in tumor tissue, including breast or gastric specimens, when the assay and analysis method support this code. It represents image-based analysis, not simply the preparation or staining of a probe slide.

Select the code based on the documented analysis method and the applicable billing code distinction between automated and manual analysis. The record should support the specimen analyzed, the in situ hybridization method, the automated analysis performed, and the pathologist’s interpretation. CMS recognizes professional and technical components: report modifier 26 for the interpretation, modifier TC for the equipment and staff, or neither modifier when billing the global service. The CMS fee schedule prices modifiers 26 and TC separately.

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 88367 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

$93.20 to $142.76

$93.20$117.98$142.76
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

88367 office and facility rates by payment locality
Payment localityOfficeFacility
Alabama$94.53Unavailable
Alaska*$121.67Unavailable
Arizona$102.29Unavailable
Arkansas$93.20Unavailable
Atlanta$106.37Unavailable
Austin$109.52Unavailable
Bakersfield$112.80Unavailable
Baltimore/Surr. Cntys$111.29Unavailable
Beaumont$97.59Unavailable
Brazoria$104.20Unavailable

88367 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.

$93.20

$127.73

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

View every state and territory as a table
88367 office rate range by state
State / territoryOffice rate rangeLocalities
AK$121.671
AL$94.531
AR$93.201
AZ$102.291
CA$112.70–$142.7629
CO$110.171
CT$111.691
DC$120.561
DE$103.961
FL$101.67–$109.203
GA$96.31–$106.372
GU$115.631
HI$115.631
IA$97.631
ID$98.091
IL$98.25–$107.734
IN$98.661
KS$96.821
KY$95.891
LA$95.59–$100.222
MA$109.39–$121.392
MD$106.03–$120.563
ME$98.19–$103.912
MI$97.96–$102.522
MN$106.741
MO$93.75–$101.023
MS$93.521
MT$104.881
NC$99.241
ND$104.481
NE$98.271
NH$108.101
NJ$113.30–$119.302
NM$98.331
NV$104.851
NY$100.66–$122.185
OH$97.881
OK$96.121
OR$104.36–$114.022
PA$98.24–$108.732
PR$105.751
RI$107.911
SC$98.661
SD$104.441
TN$97.241
TX$97.59–$109.528
UT$99.981
VA$103.31–$120.562
VI$105.751
VT$103.741
WA$109.29–$124.212
WI$101.041
WV$94.621
WY$104.711

How the 88367 rate is calculated

Each of 88367’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 · 88367

RVUs × geographic indexes × conversion factor

Swap in your local Medicare rate.

Work 0.71Practice expense 2.41Malpractice 0.02

3.1400 adjusted RVUs×$33.4009 conversion factor=$104.88

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

Payment rules and modifiers for 88367

The CMS indicators that decide how 88367 is paid alongside other services.

CMS payment indicators · 88367

ISH analysis

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

88367 without 26 · national office

$104.88

ISH analysis

88367-26 · Professional component

$31.06

Pays only the interpretation and report.

When to use modifier 26

88367 compared with similar codes

Compare codes

88367 vs 88368 vs 88369 vs 88373 vs 88364: national Medicare rates

Swap in your local Medicare rate.

  • 88367
    ISH analysis · 0.71 wRVU
    $104.88
  • 88368
    ISH analysis · 0.86 wRVU
    $145.96+$41.08
  • 88369
    ISH morphometry · 0.68 wRVU
    $128.93+$24.05
  • 88373
    ISH analysis · 0.57 wRVU
    $63.46−$41.42
  • 88364
    ISH probe stain · 0.68 wRVU
    $126.59+$21.71

How to choose

88368ISH analysis
88368 is the manual morphometric analysis counterpart; 88367 is used when the analysis is automated.
88369ISH morphometry
88369 describes manual quantitative or semiquantitative morphometric analysis, rather than the automated analysis represented by 88367.
88373ISH analysis
88373 is for automated quantitative or semiquantitative morphometric analysis; 88367 is the automated morphometric analysis code without that specific quantitative or semiquantitative distinction.
88364ISH probe stain
88364 represents the initial single-probe in situ hybridization stain procedure, not automated morphometric analysis of the resulting signals.

88367 billing questions

How does this differ from 88368?

88367 represents automated morphometric analysis of in situ hybridization signals. Use 88368 when the morphometric analysis is performed manually.

Is this code for the probe stain itself?

No. It represents automated morphometric analysis of the in situ hybridization signals, rather than the probe stain procedure alone.

When should modifier 26 or TC be used?

Use modifier 26 for the professional interpretation and modifier TC for the technical service, including equipment and staff. Report the global service without either modifier.

What documentation supports reporting 88367?

Document the tissue specimen, in situ hybridization method, automated morphometric analysis performed, and the pathologist’s interpretation.

Is the unit based on the slide or the specimen?

The code is described per specimen. The report should identify the specimen analyzed rather than treating each image or slide as a separate unit automatically.

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 88367PPRRVU2026_Oct_nonQPP.csv, line 11,294 (RVU26D)

Open CMS sourceHow we calculate rates

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