CPT code 01938: Spinal procedure anesthesia, lumbar or sacral2026 Medicare rate & RVUs in Tennessee
Anesthesia for image-guided injections, drainage, or aspiration involving the lumbar or sacral spine or spinal cord.
CMS doesn’t publish a rate for 01938 in Tennessee.
Check a contract rate as a % of Medicare · 01938 nationwide
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 11 sections
What 01938 covers
This service covers anesthesia for percutaneous procedures that use imaging to guide an injection, drainage, or aspiration in the lumbar or sacral spine or spinal cord. An anesthesiologist or CRNA may provide and report the anesthesia; the clinician performing the spinal procedure reports that procedure separately.
Choose this code for the lumbar or sacral region, not the cervical or thoracic counterpart, 01937. It covers injection, drainage, or aspiration procedures rather than lumbar or sacral procedures using a neurolytic agent or neuromodulation. The record should identify the procedure, lumbar or sacral site, image-guided percutaneous approach, and anesthesia practitioner’s time. Medicare payment is (4 base units + time units) × the anesthesia conversion factor. Time starts when the practitioner begins preparing the patient for anesthesia and ends when the practitioner is no longer personally attending and the patient can safely be placed under postoperative care; minutes are converted to 15-minute units to one decimal place, and the conversion factor varies by locality.
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 Tennessee compares for 01938
- Tennessee · this pageUnavailable
- Los Angeles, CA · CaliforniaUnavailable
- Washington, DC area · District of ColumbiaUnavailable
- Miami, FL · FloridaUnavailable
- Chicago, IL · IllinoisUnavailable
- Manhattan, NY · New YorkUnavailable
- Alaska · AlaskaUnavailable
Other areas in Tennessee first, then benchmark localities. Bars start at $0.
Every other payment area
01938 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.
View every state and territory as a table
| State / territory | Office rate range | Localities |
|---|---|---|
| AK | No published base rate | 1 |
| AL | No published base rate | 1 |
| AR | No published base rate | 1 |
| AZ | No published base rate | 1 |
| CA | No published base rate | 29 |
| CO | No published base rate | 1 |
| CT | No published base rate | 1 |
| DC | No published base rate | 1 |
| DE | No published base rate | 1 |
| FL | No published base rate | 3 |
| GA | No published base rate | 2 |
| GU | No published base rate | 1 |
| HI | No published base rate | 1 |
| IA | No published base rate | 1 |
| ID | No published base rate | 1 |
| IL | No published base rate | 4 |
| IN | No published base rate | 1 |
| KS | No published base rate | 1 |
| KY | No published base rate | 1 |
| LA | No published base rate | 2 |
| MA | No published base rate | 2 |
| MD | No published base rate | 3 |
| ME | No published base rate | 2 |
| MI | No published base rate | 2 |
| MN | No published base rate | 1 |
| MO | No published base rate | 3 |
| MS | No published base rate | 1 |
| MT | No published base rate | 1 |
| NC | No published base rate | 1 |
| ND | No published base rate | 1 |
| NE | No published base rate | 1 |
| NH | No published base rate | 1 |
| NJ | No published base rate | 2 |
| NM | No published base rate | 1 |
| NV | No published base rate | 1 |
| NY | No published base rate | 5 |
| OH | No published base rate | 1 |
| OK | No published base rate | 1 |
| OR | No published base rate | 2 |
| PA | No published base rate | 2 |
| PR | No published base rate | 1 |
| RI | No published base rate | 1 |
| SC | No published base rate | 1 |
| SD | No published base rate | 1 |
| TN | No published base rate | 1 |
| TX | No published base rate | 8 |
| UT | No published base rate | 1 |
| VA | No published base rate | 2 |
| VI | No published base rate | 1 |
| VT | No published base rate | 1 |
| WA | No published base rate | 2 |
| WI | No published base rate | 1 |
| WV | No published base rate | 1 |
| WY | No published base rate | 1 |
How the 01938 rate is calculated
Each of 01938’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 · 01938
RVUs × geographic indexes × conversion factor
Work0.00
0.00 RVUs× 1.000 GPCI
Practice expense0.00
0.00 RVUs× 1.000 GPCI
Malpractice0.00
0.00 RVUs× 1.000 GPCI
Adjusted RVUs
0.0000
Conversion factor
$33.4009
Medicare rate
$0.00
Every GPCI starts at 1.000, the national rate. Enter a ZIP or drag a slider.
Payment rules and modifiers for 01938
01938 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 · 01938
Which rate does Medicare pay?
The POS code on the claim line (CMS-1500 box 24B).
POS 11 · non-facility rate · national
—
01938 isn’t priced in this setting.
How 01938 has changed in Tennessee
01938 · Office / nonfacility
Rate unavailable
Effective 2026-10-01
A rate is unavailable in one of these releases, so a change cannot be calculated.
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
January 1, 2022
RVU22A
No ratechanged toNo rate
Held through RVU22B, RVU22C, RVU22D, RVU23A, RVU23B, RVU23C, RVU23D, RVU24A, RVU24AR, RVU24B, RVU24C, RVU24D, RVU25A, RVU25B, RVU25C, RVU25D, RVU26A, RVU26B, RVU26C, RVU26D.
January 1, 2013
RVU13AR
Earliest loaded release: No rate
Held through RVU13B, RVU13C, RVU13D, RVU14A, RVU14B, RVU14C, RVU14D, RVU15A, RVU15B, RVU15C, RVU15D, RVU16A, RVU16B, RVU16C, RVU16D, RVU17A, RVU17B, RVU17C, RVU17D, RVU18AR1, RVU18B, RVU18C, RVU18D, RVU19A, RVU19B, RVU19C, RVU19D, RVU20A, RVU20B, RVU20C, RVU20D, RVU21A, RVU21B, RVU21C, RVU21D.
| Effective from | Office | Facility | CMS release |
|---|---|---|---|
| 2026-10-01 | Unavailable | Unavailable | RVU26D |
| 2026-07-01 | Unavailable | Unavailable | RVU26C |
| 2026-04-01 | Unavailable | Unavailable | RVU26B |
| 2026-01-01 | Unavailable | Unavailable | RVU26A |
| 2025-10-01 | Unavailable | Unavailable | RVU25D |
| 2025-07-01 | Unavailable | Unavailable | RVU25C |
| 2025-04-01 | Unavailable | Unavailable | RVU25B |
| 2025-01-01 | Unavailable | Unavailable | RVU25A |
| 2024-10-01 | Unavailable | Unavailable | RVU24D |
| 2024-07-01 | Unavailable | Unavailable | RVU24C |
| 2024-04-01 | Unavailable | Unavailable | RVU24B |
| 2024-03-09 | Unavailable | Unavailable | RVU24AR |
| 2024-01-01 | Unavailable | Unavailable | RVU24A |
| 2023-10-01 | Unavailable | Unavailable | RVU23D |
| 2023-07-01 | Unavailable | Unavailable | RVU23C |
| 2023-04-01 | Unavailable | Unavailable | RVU23B |
| 2023-01-01 | Unavailable | Unavailable | RVU23A |
| 2022-10-01 | Unavailable | Unavailable | RVU22D |
| 2022-07-01 | Unavailable | Unavailable | RVU22C |
| 2022-04-01 | Unavailable | Unavailable | RVU22B |
| 2022-01-01 | Unavailable | Unavailable | RVU22A |
| 2021-10-01 | Not in this release | Not in this release | RVU21D |
| 2021-07-01 | Not in this release | Not in this release | RVU21C |
| 2021-04-01 | Not in this release | Not in this release | RVU21B |
| 2021-01-01 | Not in this release | Not in this release | RVU21A |
| 2020-10-01 | Not in this release | Not in this release | RVU20D |
| 2020-07-01 | Not in this release | Not in this release | RVU20C |
| 2020-04-01 | Not in this release | Not in this release | RVU20B |
| 2020-01-01 | Not in this release | Not in this release | RVU20A |
| 2019-10-01 | Not in this release | Not in this release | RVU19D |
| 2019-07-01 | Not in this release | Not in this release | RVU19C |
| 2019-04-01 | Not in this release | Not in this release | RVU19B |
| 2019-01-01 | Not in this release | Not in this release | RVU19A |
| 2018-10-01 | Not in this release | Not in this release | RVU18D |
| 2018-07-01 | Not in this release | Not in this release | RVU18C |
| 2018-04-01 | Not in this release | Not in this release | RVU18B |
| 2018-01-01 | Not in this release | Not in this release | RVU18AR1 |
| 2017-10-01 | Not in this release | Not in this release | RVU17D |
| 2017-07-01 | Not in this release | Not in this release | RVU17C |
| 2017-04-01 | Not in this release | Not in this release | RVU17B |
| 2017-01-01 | Not in this release | Not in this release | RVU17A |
| 2016-10-01 | Not in this release | Not in this release | RVU16D |
| 2016-07-01 | Not in this release | Not in this release | RVU16C |
| 2016-04-01 | Not in this release | Not in this release | RVU16B |
| 2016-01-01 | Not in this release | Not in this release | RVU16A |
| 2015-10-01 | Not in this release | Not in this release | RVU15D |
| 2015-07-01 | Not in this release | Not in this release | RVU15C |
| 2015-04-01 | Not in this release | Not in this release | RVU15B |
| 2015-01-01 | Not in this release | Not in this release | RVU15A |
| 2014-10-01 | Not in this release | Not in this release | RVU14D |
| 2014-07-01 | Not in this release | Not in this release | RVU14C |
| 2014-04-01 | Not in this release | Not in this release | RVU14B |
| 2014-01-01 | Not in this release | Not in this release | RVU14A |
| 2013-10-01 | Not in this release | Not in this release | RVU13D |
| 2013-07-01 | Not in this release | Not in this release | RVU13C |
| 2013-04-01 | Not in this release | Not in this release | RVU13B |
| 2013-01-01 | Not in this release | Not in this release | RVU13AR |
Where the Tennessee rate applies
Tennessee is a Medicare payment area, not a city. Our Census mapping connects it to 504 cities and communities in Tennessee. Some span more than one payment area; confirm with the service ZIP.
- Adams
- Adamsville
- Alamo
- Alcoa
- Alexandria
- Algood
- Allardt
- Altamont
01938 billing questions
When should 01938 be chosen over 01937?
Use 01938 for the lumbar or sacral region. Use 01937 for the cervical or thoracic region when the procedure is an image-guided injection, drainage, or aspiration.
Does 01938 include the spinal procedure itself?
No. It represents the anesthesia service; the clinician performing the injection, drainage, or aspiration reports the procedure separately.
What documentation supports the code?
The record should show the lumbar or sacral site, the image-guided percutaneous procedure and its type, and the anesthesia service and time.
How are anesthesia units calculated for 01938?
The code has 4 base units. Medicare adds time units, calculated from anesthesia minutes in 15-minute units to one decimal place, and applies the locality’s anesthesia conversion factor.
Is 01938 appropriate for lumbar neurolytic procedures?
No. Use 01940 for a lumbar or sacral procedure using a neurolytic agent; 01938 covers image-guided injection, drainage, or aspiration procedures.
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
Fee sheets · Coming soon
Put 01938 and the rest of your codes on one sheet
Your codes at your locality, with payer contracts beside Medicare.
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