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ALL MEDICAL CODES IN CATEGORY Provider Services and Ambulatory Service Center Modifiers

2025 CPT code 50

Indicates a bilateral procedure.

2025 CPT code 56

Indicates that the physician provided only the preoperative management of a surgical procedure.

2025 CPT Modifier code 90

Indicates that a laboratory test was performed by an outside or reference laboratory instead of the treating physician.

2025 CPT code 58

Indicates a staged or related procedure performed by the same physician during the postoperative period of a prior procedure.

2025 CPT code 26

Professional Component modifier; indicates physician's supervision and interpretation of a service.

2025 CPT code 24

Unrelated Evaluation and Management (E/M) service by the same physician during a postoperative period.

2025 CPT code 66

Surgical Team Modifier; indicates the provider was part of a surgical team performing a complex procedure.

2025 CPT code 93

Modifier 93 indicates a synchronous telemedicine service rendered via telephone or other real-time interactive audio-only telecommunications system.

2025 CPT code 95

Modifier 95 indicates a synchronous telehealth service using real-time interactive audio and video.

2025 CPT Modifier code 80

Identifies assistant surgeon services provided by a physician during the entire surgical procedure.

2025 CPT code 73

Indicates a discontinued outpatient hospital or ambulatory surgery center procedure before anesthesia administration.

2025 CPT code 33

Identifies preventive services covered under the Affordable Care Act (ACA).

2025 CPT code 96

Modifier 96 indicates that a service or procedure is habilitative, meaning it helps a patient learn, maintain, or improve skills for daily living activities.

2025 CPT Modifier code 47

Anesthesia administered by the surgeon during a surgical procedure.

2025 CPT code 62

Two surgeons; each performs a distinct part of a procedure.

2025 CPT code 77

Repeat Procedure by Another Physician or Other Qualified Health Care Professional

2025 CPT code 76

Indicates a procedure or service repeated by the same physician/QHP on the same day.

2025 CPT code 32

Mandated Services. This modifier indicates that a service was required by a third-party payer, government, legislative, or regulatory mandate.

2025 CPT code 25

Significant, separately identifiable evaluation and management (E/M) service by the same physician on the same day of the procedure or other service.

2025 CPT code 54

Surgical care only. This modifier is used when the provider performs only the surgical procedure and does not provide the preoperative or postoperative management.

2025 CPT code 74

This modifier indicates that a planned surgical or diagnostic procedure requiring anesthesia was discontinued after anesthesia administration but before the procedure started, due to circumstances threatening patient well-being.

2025 CPT code 27

Multiple Outpatient Hospital E/M Encounters on the Same Date.

2025 CPT code 99

Multiple Modifiers

2025 CPT code 91

Repeat Clinical Diagnostic Laboratory Test

2025 CPT code 81

This modifier indicates that an assistant surgeon assisted the principal surgeon during only part of a surgical procedure.

2025 CPT code 23

Unusual Anesthesia modifier; used when general anesthesia is administered for a procedure that typically requires local or no anesthesia due to unusual circumstances.

2025 CPT code 53

Discontinued Procedure