$112.78
Use 88312 for a special stain classified in Group I; 88314 is reserved for Group III stains. The stain’s CPT group determines the code.
On this page
CMS RVU26D · Effective 2026-10-01
88314 Histochemical stain Medicare reimbursement rates in Rhode Island
Reports a Group III histochemical stain performed on tissue when the pathologist needs additional microscopic information beyond routine staining. Compare 88314 office and facility rates across CMS payment localities in Rhode Island.
Amounts below use the non-QP conversion factor for participating physicians. These are base physician payments before claim-level adjustments, not patient costs or total hospital charges.
What does Medicare pay for 88314 in Rhode Island?
Rhode Island has 1 payment locality in this comparison. Use the service location to choose the applicable amount. These are the supported base rates for the payment area shown below, using the same CMS release.
Office / nonfacility
$84.19
1 of 1 localities have a supported rate.
Payment area: Rhode Island
One mapped payment locality.
Facility setting
No supported rate
These are locality ranges, not averages or address-specific quotes. A facility-setting amount covers the physician service; it does not include a hospital’s separate bill. Choose a locality below to inspect its calculation, compare other payment areas, or price a percentage of Medicare.
Surgical pathology
About 88314: Group III histochemical stain
Reports a Group III histochemical stain performed on tissue when the pathologist needs additional microscopic information beyond routine staining.
A Group III histochemical stain is an additional tissue preparation used to bring out features that help a pathologist evaluate a biopsy or other surgical specimen. Laboratory histotechnologists perform the staining, and a pathologist interprets the result in the context of the specimen and issues the diagnostic report. The stain may be used when routine hematoxylin-and-eosin sections leave a specific tissue characteristic unclear; the stain must fall within the CPT Group III classification.
Report 88314 for each applicable stain, with documentation identifying the stain, the tissue examined, and the diagnostic reason for using it. It is an add-on to the pathology service, not a substitute for the primary examination of the specimen. CMS recognizes professional and technical components: modifier 26 identifies the interpretation, modifier TC identifies the laboratory work, and no modifier reports the global service. CMS separately prices both component modifiers.
CMS billing rules for 88314
- Professional and technical components
- Diagnostic test with a professional component (modifier 26, interpretation) and a technical component (modifier TC, equipment and staff); billing without a modifier is the global service.
Where the value comes from
- Work RVU0.44 · 18%
- Practice expense (office) RVU1.98 · 81%
- Malpractice RVU0.03 · 1%
34.2K
Medicare services in 2024 · #928 by national volume
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.
88314 compared with similar codes
Office rates for Rhode Island, from the same CMS release.
$83.30
Use 88313 for a special stain classified in Group II. Choose 88314 only when the stain belongs to Group III.
$113.45
88342 reports an immunohistochemical or immunocytochemical stain using an antibody. 88314 is for a Group III histochemical stain.
Compare 88314 by payment locality
Find the payment area for your service address, then open its rate page for calculation inputs, release history and the percentage-of-Medicare tool. A city may cross payment-area boundaries; the ZIP lookup above helps resolve the location.
1 of 1 payment localities
Rhode Island →
Office / nonfacility
$84.19
Facility
Unavailable
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How this local rate is calculated
Each RVU component is multiplied by its own geographic practice cost index (GPCI). The three adjusted components are added, then multiplied by the conversion factor. These are the inputs used for 88314 in Rhode Island.
PPRRVU2026_Oct_nonQPP.csv
11,224
- Code
- 88314
- Physician work
- 0.44
- Practice expense
- 1.98
- Malpractice
- 0.03
GPCI2026.csv
92
- Locality
- Rhode Island
- Physician work
- 1.019
- Practice expense
- 1.033
- Malpractice
- 0.892
| Component | RVU | Locality factor | Adjusted |
|---|---|---|---|
| Physician work | 0.44 | × 1.019 | 0.4484 |
| Practice expense | 1.98 | × 1.033 | 2.0453 |
| Malpractice | 0.03 | × 0.892 | 0.0268 |
| Total RVUs | 2.5205 | ||
| Conversion factor | × 33.4009 | ||
Office / nonfacility rate, Rhode Island$84.19
Explore RVUs, geographic factors and the full formula
Office / nonfacility
| Component | RVU | Local GPCI |
|---|---|---|
| Work | 0.44 | 1.019 |
| Practice expense | 1.98 | 1.033 |
| Malpractice | 0.03 | 0.892 |
(0.44 × 1.019 + 1.98 × 1.033 + 0.03 × 0.892) × $33.4009 = $84.19
The office and facility calculations use their respective practice-expense RVUs. The facility amount here is the physician fee, not a separate hospital or facility bill.
88314 billing questions
When should 88314 be selected instead of 88312 or 88313?
Select 88314 when the stain performed belongs to CPT Group III. The stain’s CPT group, rather than the specimen type or the reason for testing alone, distinguishes it from Groups I and II.
Can 88314 be reported by itself?
No. It is an add-on stain service reported with the related primary pathology service, such as a surgical pathology examination, when that examination and the stain are documented.
What supports reporting 88314?
The record should identify the Group III stain, the specimen or tissue examined, and the clinical or diagnostic question the stain helps address. The pathology report should include the interpretation.
How are the professional and technical components reported?
Use modifier 26 for the pathologist’s interpretation and modifier TC for the technical laboratory work. Report without either modifier when billing the global service.
Is 88314 counted per slide or per stain?
The code is reported for each applicable stain, not simply for each slide or tissue section. Documentation should make the stain performed identifiable.
Where these rates come from
FeeBase calculates base physician payments from CMS work, practice-expense, and malpractice RVUs, adjusted by each locality’s geographic indices and the applicable conversion factor. Unavailable or separately priced services are labeled rather than assigned a made-up amount.
Source: RVU26D. Effective 2026-10-01 through the day before 2027-01-01.
11,22188313,,Special stains group 2,A,,0.23,2.17,,2.17,NA,0.02,2.42,2.42,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
11,22288313,26,Special stains group 2,A,,0.23,0.10,,0.10,,0.01,0.34,0.34,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
11,22388313,TC,Special stains group 2,A,,0.00,2.07,,2.07,NA,0.01,2.08,2.08,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
11,22488314,,Histochemical stains add-on,A,,0.44,1.98,,1.98,NA,0.03,2.45,2.45,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
11,22588314,26,Histochemical stains add-on,A,,0.44,0.11,,0.11,,0.01,0.56,0.56,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
11,22688314,TC,Histochemical stains add-on,A,,0.00,1.87,,1.87,NA,0.02,1.89,1.89,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
11,22788319,,Enzyme histochemistry,A,,0.52,3.40,,3.40,NA,0.03,3.95,3.95,1,XXX,0.00,0.00,0.00,0,0,0,0,0,9,,33.4009,09,0,99,0.00,0.00,0.00
8912502,PA,01,METROPOLITAN PHILADELPHIA,1.018,1.041,1.193
9012502,PA,99,REST OF PENNSYLVANIA,1.000,0.918,0.945
9109202,PR,20,PUERTO RICO,1.000,1.011,0.985
9214412,RI,01,RHODE ISLAND,1.019,1.033,0.892
9311202,SC,01,SOUTH CAROLINA,1.000,0.924,0.850
9403402,SD,02,SOUTH DAKOTA**,1.000,1.000,0.336
9510312,TN,35,TENNESSEE,1.000,0.909,0.537