CPT code 01992: Prone injection anesthesia, diagnostic or therapeutic blocks2026 Medicare rate & RVUs

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

What 01992 covers

01992 describes anesthesia furnished for a diagnostic or therapeutic nerve block or injection performed with the patient prone. These cases commonly occur in interventional pain settings, including injections near the spine, when an anesthesia professional supports the procedure while the patient remains prone. The anesthesia professional reports the anesthesia service; the clinician performing the block or injection documents that procedure separately.

Choose 01992 rather than 01991 when the patient is prone; 01991 is for these services when the patient is not prone. For percutaneous image-guided spinal injection procedures classified by region, compare 01937 for cervical or thoracic procedures and 01938 for lumbar or sacral procedures. The record should identify the block or injection, its site and indication, the patient’s position, and the anesthesia start and end times. Medicare payment is (5 base units plus time units) multiplied by the locality’s anesthesia conversion factor. Time is reported in minutes and converted to 15-minute units to one decimal place, from anesthesia preparation until the practitioner is no longer in personal attendance and the patient can safely be placed under postoperative care; 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.

Where 01992 pays more and less

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

109 of 109 payment localities

01992 rates by state

Office rate range in each state. Select a state to see its payment localities.

How the 01992 rate is calculated

Each of 01992’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.

Payment rules and modifiers for 01992

01992 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.

01992 compared with similar codes

How to choose

01991Nerve block anesthesiaNon-prone procedures

The key distinction is patient position: 01992 is for prone procedures, while 01991 is for procedures performed with the patient not prone.

01937Spinal procedure anesthesiaCervical or thoracic region

01937 covers anesthesia for qualifying percutaneous image-guided spinal injection procedures in the cervical or thoracic region; 01992 is the prone nerve-block or injection category.

01938Spinal procedure anesthesiaLumbar or sacral

01938 covers anesthesia for qualifying percutaneous image-guided lumbar or sacral spinal injection procedures; 01992 is selected for prone nerve blocks or injections outside that specific category.

Codes related to 01992

Related codes aren’t interchangeable: bill the code that matches the service performed.

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

Open CMS sourceHow we calculate rates