CPT code 01942: Spinal procedure anesthesia, lumbar and sacral2026 Medicare rate & RVUs in Michigan
Anesthesia for percutaneous image-guided procedures on the lumbar spine, sacrum, or spinal cord, including vertebral augmentation procedures.
CMS doesn’t publish an office rate for 01942 in Michigan.
Medicare allowed amount for participating (non-QP) physicians, before deductible, coinsurance and claim adjustments. Not a patient’s bill or a hospital charge.
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What 01942 covers
This service covers anesthesia for percutaneous procedures guided by imaging on the lumbar or sacral spine or spinal cord. Typical cases include vertebral augmentation, such as vertebroplasty or kyphoplasty. An anesthesia professional provides and reports the service while an interventional radiologist, pain physician, or spine surgeon performs the procedure, commonly in a hospital or ambulatory setting.
Choose 01942 for these image-guided procedures rather than anesthesia for spinal injections or aspiration, or for percutaneous neurolytic treatment, which have separate codes. The operative report should identify the lumbar or sacral site, percutaneous approach, imaging guidance, and procedure performed; the anesthesia record should support the service and its start and end times. Medicare payment is (5 base units + time units) × the locality’s anesthesia conversion factor; time is reported in minutes and converted to 15-minute units to one decimal, beginning with preparation for anesthesia and ending when personal attendance ends and the patient can safely enter postoperative care.
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 01942 pays more and less in Michigan
| Payment locality | Office | Facility |
|---|---|---|
| Detroit, MI | Unavailable | Unavailable |
| Rest of Michigan | Unavailable | Unavailable |
How the 01942 rate is calculated
Each of 01942’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 · 01942
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 01942
01942 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 · 01942
Which rate does Medicare pay?
The POS code on the claim line (CMS-1500 box 24B).
POS 11 · non-facility rate · national
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01942 isn’t priced in this setting.
01942 compared with similar codes
Compare codes · National
4 codes, side by side
How to choose
- 01941Spine procedure anesthesiaCervical or thoracic
- The procedure type is the same, but 01941 applies to the cervical or thoracic region; 01942 applies to the lumbar or sacral region.
- 01938Spinal procedure anesthesiaLumbar or sacral
- Choose 01938 for lumbar or sacral spinal injection, drainage, or aspiration procedures. Choose 01942 for other percutaneous image-guided procedures in those regions.
- 01940Spinal neurolysis anesthesiaLumbar or sacral
- Choose 01940 for lumbar or sacral percutaneous neurolytic treatment. 01942 covers other percutaneous image-guided procedures, such as vertebral augmentation.
01942 billing questions
When should 01942 be chosen instead of 01941?
Use 01942 for the lumbar or sacral region. Use 01941 when the percutaneous image-guided spinal procedure is in the cervical or thoracic region.
Does 01942 cover spinal injections or neurolytic treatment?
No. Anesthesia for lumbar or sacral injection, drainage, or aspiration procedures is represented by 01938; anesthesia for percutaneous neurolytic treatment is represented by 01940.
How are anesthesia time units calculated for 01942?
Report anesthesia time in minutes; CMS converts it to 15-minute units computed to one decimal place. The interval runs from preparation for anesthesia until personal attendance ends and the patient can safely be placed under postoperative care.
What should the records show to support 01942?
The operative report should establish the lumbar or sacral site, percutaneous image-guided approach, and procedure performed. The anesthesia record should support the anesthesia service and its start and end times.
What are the Medicare base units for 01942?
01942 has 5 base units. Medicare calculates payment using base units plus time units, multiplied by the anesthesia conversion factor for the payment locality.
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
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