0558T Ct scan f/biomchn ct alys
What 0558T is
CMS fee schedule short descriptor: Ct scan f/biomchn ct alys.
Full CPT long descriptions are licensed by the American Medical Association and are not published on this site; the short descriptor above is the one CMS prints in its own fee schedule file. See About CPT.
Medicare payment for 0558T (CY2026)
This code has no Physician Fee Schedule rate: Carrier-priced - the Medicare contractor sets the price. It may be paid under a different fee schedule (clinical laboratory, DMEPOS, anesthesia) or not paid at all - check the relevant CMS schedule.
Medically Unlikely Edit (MUE)
Medicare caps 0558T at 1 unit per date of service for practitioner claims (MAI 2 - date of service edit (absolute): units above the MUE never pay), rationale: Code Descriptor / CPT Instruction. Units above the cap are denied unless the edit's adjudication rules allow an appeal with documentation.
Billed with 0558T? These codes are bundled into it
0558T is a Column 1 code in 3 active NCCI PTP edits. When one of these Column 2 codes is reported on the same date of service, it is denied as bundled - unless the edit's modifier indicator is 1 and documentation supports a distinct service with an NCCI-associated modifier.
| Column 2 code | Short description | Modifier indicator | |
|---|---|---|---|
36591 | Draw blood off venous device | 0 - no modifier bypass | Check pair |
36592 | Collect blood from picc | 0 - no modifier bypass | Check pair |
96523 | Irrig drug delivery device | 0 - no modifier bypass | Check pair |
0558T is bundled into these codes
0558T appears as a Column 2 code in 37 active edits. Reported with one of these Column 1 codes on the same date of service, 0558T is the code that denies.
| Column 1 code | Short description | Modifier indicator | |
|---|---|---|---|
0691T | Auto alys xst ct std vrt fx | 0 | Check pair |
0877T | Augmnt alys ch ct ild w/o ct | 0 | Check pair |
0878T | Augmnt alys ch ct ild w/ct | 0 | Check pair |
71250 | Ct thorax dx c- | 1 | Check pair |
71260 | Ct thorax dx c+ | 1 | Check pair |
71270 | Ct thorax dx c-/c+ | 1 | Check pair |
71275 | Ct angiography chest | 1 | Check pair |
72125 | Ct neck spine w/o dye | 1 | Check pair |
72126 | Ct neck spine w/dye | 1 | Check pair |
72127 | Ct neck spine w/o & w/dye | 1 | Check pair |
72128 | Ct chest spine w/o dye | 1 | Check pair |
72129 | Ct chest spine w/dye | 1 | Check pair |
72130 | Ct chest spine w/o & w/dye | 1 | Check pair |
72131 | Ct lumbar spine w/o dye | 1 | Check pair |
72132 | Ct lumbar spine w/dye | 1 | Check pair |
Data: CMS CY2026 Physician Fee Schedule RVU file (October release, RVU26D) and Medicare NCCI PTP practitioner edits v32.3 (2026 Q4). Verify against the official files before billing or contracting decisions.