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CPT/HCPCS Modifiers
63 modifiers and growing. Also see NCCI edits, denial codes, and Medicare fees.
- 22 — Increased Procedural 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
- 26 — Professional Component
- 27 — Multiple Outpatient Hospital E/M Encounters on the Same Date
- 32 — Mandated Services
- 33 — Preventive Services
- 47 — Anesthesia by Surgeon
- 50 — Bilateral Procedure
- 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 — Distinct Procedural Service
- 62 — Two Surgeons
- 63 — Procedure Performed on Infants less than 4 kg
- 66 — Surgical Team
- 76 — Repeat Procedure or Service by Same Physician or Other Qualified Health Care Professional
- 77 — Repeat Procedure by Another Physician or Other Qualified Health Care Professional
- 78 — Unplanned Return to the Operating/Procedure Room by the Same Physician Following an Initial Procedure for a Related Procedure During the Postoperative Period
- 79 — Unrelated Procedure or Service by the Same Physician During the Postoperative Period
- 80 — Assistant Surgeon
- 81 — Minimum Assistant Surgeon
- 82 — Assistant Surgeon (when qualified resident surgeon not available)
- 90 — Reference (Outside) Laboratory
- 91 — Repeat Clinical Diagnostic Laboratory Test
- 92 — Alternative Laboratory Platform Testing
- 93 — Synchronous Telemedicine Service Rendered via Telephone or Other Real-Time Interactive Audio-Only Telecommunications System
- 95 — Synchronous Telemedicine Service Rendered via a Real-Time Interactive Audio and Video Telecommunications System
- 96 — Habilitative Services
- 97 — Rehabilitative Services
- 99 — Multiple Modifiers
- GA — Waiver of Liability Statement Issued as Required by Payer Policy, Individual Case
- GC — Service Has Been Performed in Part by a Resident under the Direction of a Teaching Physician
- GT — Via Interactive Audio and Video Telecommunication Systems
- GY — Item or Service Statutorily Excluded, Does Not Meet the Definition of Any Medicare Benefit
- GZ — Item or Service Expected to be Denied as Not Reasonable and Necessary
- KX — Requirements Specified in the Medical Policy Have Been Met
- LT — Left Side (used to identify procedures performed on the left side of the body)
- Q7 — One Class A Finding
- Q8 — Two Class B Findings
- Q9 — One Class B and Two Class C Findings
- RT — Right Side (used to identify procedures performed on the right side of the body)
- T1 — Left foot, second digit
- T2 — Left foot, third digit
- T3 — Left foot, fourth digit
- T4 — Left foot, fifth digit
- T5 — Right foot, great toe
- T6 — Right foot, second digit
- T7 — Right foot, third digit
- T8 — Right foot, fourth digit
- T9 — Right foot, fifth digit
- TA — Left foot, great toe
- TC — Technical Component
- XE — Separate Encounter, A Service That Is Distinct Because It Occurred During a Separate Encounter
- XP — Separate Practitioner, A Service That Is Distinct Because It Was Performed by a Different Practitioner
- XS — Separate Structure, A Service That Is Distinct Because It Was Performed on a Separate Organ/Structure
- XU — Unusual Non-Overlapping Service, The Use of a Service That Is Distinct Because It Does Not Overlap Usual Components of the Main Service
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