| Modifier # | Modifier description |
| 22 | Unusual Procedual Services |
| 23 | Unusual Anesthesia |
| 24 | Unrelated Evaluation and Management Service by the Same Physician During a Postoperative Period |
| 25 | Significant, Separately Identifiable Evaluation and Management Service by the Same Physician on the Same Day of the Procedure or Other Service |
| 26 | Professional Componetn |
| 32 | Mandated Services |
| 47 | Anesthesia by Surgeon |
| 50 | Bilateral Procedures |
| 51 | Multiple Procedures |
| 52 | Reduced Services |
| 53 | Discontinued Procedure |
| 54 | Surgical Care Only |
| 55 | Postoperative Management Only |
| 56 | Preoperative Management Only |
| 57 | Decision for Surgery |
| 58 | Staged or Related Procedure or Service by the Same Physician During the Postoperative Period |
| 59 | Distrinct Procedureal Service |
| 62 | Two Surgeons |
| 63 | Procedure Performed on Infamts less than 4 kg. |
| 66 | Surgical Team |
| 76 | Repeat Procedure by Same Physician |
| 77 | Repeat Procedure by Another Physician |
| 78 | Return to the Operating Room for a Related Procedure During the Postoperative Period |
| 79 | Unrelated Procedure or Service by the Same Physician During the Postoperative Period |
| 91 | Repeat Clinical Diagnostic Laboratory Test |
| 99 | Multiple Modifiers |
| P1 | A normal healthy patient |
| P2 | A patient with mild systemic disease |
| 27 | Multiple Outpatient Hospital E/M Encounters on the Same Date |
| 73 | Discontinued Out-Patitent Hosptial/Amburlatory Surgery Center (ASC) Procedure Prior to the Administration of Anesthisia |
| 74 | Discontinue Out-Patient Hospital/Ambulatory Surgery Cener (ASC) Procedure After Administration of Anesthesia |
| LC | Left circumflex conronary artery (Hospitals use with code 92980-92984, 92995, 92996 |
| LD | Left anterior descending coronary artery (Hospitals use with codes 92980-92984, 92995, 92996 |
| LT | Left side (used to identify procedures performed on the left side of the body) |
| RC | Right coronary artery (hopsital use with codes 92980-92984, 92995, 92996 |
| RT | Right side (used to identify procedures performed on the right side of the body |