81403 Mopath procedure level 4
What 81403 is
CMS fee schedule short descriptor: Mopath procedure level 4.
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 81403 (CY2026)
This code has no Physician Fee Schedule rate: Statutory exclusion - not payable under the Physician Fee Schedule. 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 81403 at 4 units per date of service for practitioner claims (MAI 3 - date of service edit (clinical): units above the MUE may pay with documentation on appeal), rationale: Clinical: Data. Units above the cap are denied unless the edit's adjudication rules allow an appeal with documentation.
Billed with 81403? These codes are bundled into it
81403 is a Column 1 code in 36 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 | |
|---|---|---|---|
0009U | 1 - modifier may bypass | Check pair | |
0086U | 1 - modifier may bypass | Check pair | |
0140U | 1 - modifier may bypass | Check pair | |
0141U | 1 - modifier may bypass | Check pair | |
0142U | 1 - modifier may bypass | Check pair | |
0321U | 1 - modifier may bypass | Check pair | |
0402U | 1 - modifier may bypass | Check pair | |
0429U | 1 - modifier may bypass | Check pair | |
0455U | 1 - modifier may bypass | Check pair | |
0483U | 1 - modifier may bypass | Check pair | |
0484U | 1 - modifier may bypass | Check pair | |
0500U | 1 - modifier may bypass | Check pair | |
80503 | Path clin consltj sf 5-20 | 1 - modifier may bypass | Check pair |
80504 | Path clin consltj mod 21-40 | 1 - modifier may bypass | Check pair |
80505 | Path clin consltj high 41-60 | 1 - modifier may bypass | Check pair |
80506 | Path clin consltj prolng svc | 1 - modifier may bypass | Check pair |
84311 | Spectrophotometry | 1 - modifier may bypass | Check pair |
87513 | H pylri clrthmcn rst amp prb | 1 - modifier may bypass | Check pair |
87564 | Mtb rifampin rst amp prb tq | 1 - modifier may bypass | Check pair |
88271 | Cytogenetics dna probe | 1 - modifier may bypass | Check pair |
88272 | Cytogenetics 3-5 | 1 - modifier may bypass | Check pair |
88273 | Cytogenetics 10-30 | 1 - modifier may bypass | Check pair |
88274 | Cytogenetics 25-99 | 1 - modifier may bypass | Check pair |
88275 | Cytogenetics 100-300 | 1 - modifier may bypass | Check pair |
88291 | Cyto/molecular report | 1 - modifier may bypass | Check pair |
88364 | Insitu hybridization (fish) | 1 - modifier may bypass | Check pair |
88365 | Insitu hybridization (fish) | 1 - modifier may bypass | Check pair |
88366 | Insitu hybridization (fish) | 1 - modifier may bypass | Check pair |
88367 | Insitu hybridization auto | 1 - modifier may bypass | Check pair |
88368 | Insitu hybridization manual | 1 - modifier may bypass | Check pair |
Showing 30 of 36 column 2 codes. Use the pair checker for any specific combination.
81403 is bundled into these codes
81403 appears as a Column 2 code in 328 active edits. Reported with one of these Column 1 codes on the same date of service, 81403 is the code that denies.
| Column 1 code | Short description | Modifier indicator | |
|---|---|---|---|
0001U | 1 | Check pair | |
0004M | 1 | Check pair | |
0005U | 1 | Check pair | |
0006M | 1 | Check pair | |
0007M | 1 | Check pair | |
0008U | 1 | Check pair | |
0010U | 1 | Check pair | |
0011M | 1 | Check pair | |
0012M | 1 | Check pair | |
0013M | 1 | Check pair | |
0016M | 1 | Check pair | |
0018U | 1 | Check pair | |
0019U | 1 | Check pair | |
0022U | 1 | Check pair | |
0023U | 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.