Coding Guidelines: Part A Outpatient Therapy Billing by Novitas

Novitas guide for   Part A Outpatient Therapy Billing

Physical Therapy (PT)	Occupational Therapy (OT)	Speech-Language Pathology (SLP)
Occurrence Codes/Dates
11 - Onset symptom/Illness 29 - Date PT plan of care was established or last reviewed 35 - Date PT began	11 - Onset symptom/Illness 17 - Date OT plan of care was established or last reviewed 44 - Date OT began	11 - Onset symptom/Illness 30 - Date SLP plan of care was established or last reviewed 45 - Date SLP began
Comprehensive Outpatient Rehabilitation Facilities (CORFs) only: Occurrence code 28 – Date a plan of treatment was established or last reviewed for care
Revenue Codes
042X	043X	044X
HCPCS
Required	Required	Required
Modifiers
Required for 042X, 043X and 044X
GP – PT plan of treatment	GO – OT plan of treatment	GN – SLP plan of treatment
Units/Line Item Date of Services
Required	Required	Required