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CPT 0363T: Adaptive Behavior Treatment by Protocol, Technician-Administered

CPT code 0363T formerly described an adaptive behavior treatment procedure but was deleted effective January 1, 2019. This code related to behavioral intervention services commonly used in treating autism spectrum disorders and related developmental conditions. Its deletion affects coding choices for clinicians and payers who manage behavioral health billing and coverage for these services nationally. Key payers in this analysis include Aetna, Cigna Health, UnitedHealthcare, and Medicare.

Readers will learn the clinical context of the deleted code, how it related to technician-delivered adaptive behavior treatment, and which current CPT and HCPCS instructions or related codes may be referenced in contemporary billing (related codes are listed separately). The publication outlines where this code sat in treatment pathways for conditions such as autistic disorder and other developmental disorders, summarizes payer coverage relevance, and highlights policy updates tied to code deletion and replacement coding options. Benchmarks and payer-specific coverage nuances are addressed for national stakeholders managing behavioral health service lines and billing operations.

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Billing Code Overview

CPT code 0363T was deleted effective January 1, 2019. The code previously described a form of adaptive behavior treatment service. Service type: adaptive behavior treatment (behavioral intervention) delivered in a therapeutic setting. Typical site of service: outpatient behavioral health or clinic-based therapy settings. Data not available in the input.

National Reimbursement Benchmarks

National commercial reimbursement for CPT 0363T clusters around the low $40s, with BUCA’s average commercial rate at $36.4 forming the baseline for an average commercial payer. Cigna’s distribution centers near a $39.4 median and spans from a $31.8 first quartile to a $40 third quartile, giving it a relatively compact spread; the interquartile range (P75−P25) is $8.2 for Cigna and $6.2 for BUCA.

Comparing dispersion across payers, Cigna exhibits the tightest interquartile band at $8.2, indicating less variability among commercial contracts than BUCA’s $6.2 IQR, though BUCA’s mean and quartiles lie slightly lower overall. Max and min values available for Cigna also show its upper bound reaches $40, aligning with the high end of the commercial range.

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CPT 0363T: Adaptive Behavior Treatment by Protocol, Technician-Administered

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Billing Code Overview

National Reimbursement Benchmarks

National Payer Mean Reimbursement Rates

Clinical & Coding Specifications

Clinical Context

A pediatric patient with developmental delay and features consistent with an autism spectrum disorder is referred for applied behavior analysis (ABA) services. The patient is a 5-year-old child diagnosed with F84.0 (Autistic disorder) and co-occurring F90.9 (Attention-deficit hyperactivity disorder, unspecified type). The clinical workflow begins with an intake assessment by a qualified provider (behavioral analyst or psychologist) who performs a functional behavior assessment and establishes an individualized treatment protocol. Technicians or registered behavior technicians deliver face-to-face adaptive behavior treatment sessions following the protocol; supervising clinicians modify the protocol as needed and provide periodic family adaptive behavior treatment guidance.

The original billing code 0363T (deleted effective January 1, 2019) represented a time-based component of adaptive behavior treatment services within this continuum. In practice, services occur in outpatient clinic settings, home-based environments, or school-based programs. Typical encounters include technician-administered direct therapy sessions, supervisory visits by a Board Certified Behavior Analyst or psychologist, and separate family training sessions to generalize skills. Documentation includes start/stop times, behavior targets, data collection on progress, protocol content or modifications, and clinician signatures. Payer adjudication often references current, active CPT codes for adaptive behavior treatment such as 97153, 97155, and 97156 or temporary CPT/HCPCS updates that replaced deleted or discontinued codes.

Coding Specifications

Modifier	Description	When to Use
`25`	Significant, separately identifiable evaluation and management service by the same physician on the same day of the procedure	Use when an E/M visit is provided on the same day as an adaptive behavior treatment session and medical decision-making or history/exam is separately documented
`59`	Distinct procedural service	Use when a distinct behavioral procedure is performed on the same day as another reportable service and documentation supports distinctiveness
`76`	Repeat procedure or service by same provider	Use when an adaptive behavior session is repeated later the same day by the same provider
`77`	Repeat procedure by another provider	Use when a second clinician repeats the same procedure on the same day
`GT`	Via interactive audio and video telecommunications (telehealth)	Use when services are delivered via real-time telehealth if payer recognizes this modifier
`95`	Synchronous telemedicine service rendered via real-time interactive audio and video	Use for synchronous telehealth delivery when required by the payer
`KX`	Requirements specified in the medical policy have been met	Use when payer medical necessity documentation requirements for ABA services are met
`GA`	Waiver of liability statement on file (patient has been informed financial liability may apply)	Use when services are provided under a voluntary non-covered waiver and documentation supports patient acknowledgment
`GZ`	Item or service expected to be denied as not reasonable and necessary	Use when the provider furnishes service but expects denial for medical necessity
`GP`	Services delivered under a physical therapy plan of care	Use only if an ABA-related activity is billed under physical therapy arrangements per payer rules (rare)
`EP`	Episode of care (Medicare hospice)	Use in rare circumstances where services intersect hospice episode reporting rules
`XE`	Separate encounter, distinct from other service on the same day	Use when the ABA session occurred in a separate encounter distinct from other services
`EB`	Evidence of eligibility on file	Use when payer requires documentation of eligibility for program participation
`QS`	Monitored anesthesia care service converted to general anesthesia (Not typically applicable)	Generally not applicable; included for completeness in complex service bundles

Taxonomy Code	Specialty	Notes
`103K00000X`	Behavioral Analyst	Board Certified Behavior Analysts provide supervision, protocol development, and modification of adaptive behavior treatment
`103T00000X`	Psychologist	Clinical psychologists perform assessments, diagnostic evaluation, and supervise behavioral interventions
`101YM0800X`	Mental Health Counselor	Mental health counselors may deliver family guidance and participate in treatment planning

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`F84.0`	Autistic disorder	Primary diagnosis commonly associated with adaptive behavior treatment; ABA targets core social-communication deficits and maladaptive behaviors
`F84.5`	Asperger's syndrome	Developmental disorder within the autism spectrum where ABA techniques address social skills, routines, and behavior management
`F84.9`	Pervasive developmental disorder, unspecified	Used when a pervasive developmental disorder is present but specific subtype is unspecified; supports need for behavioral intervention
`F90.9`	Attention-deficit hyperactivity disorder, unspecified type	Co-occurring condition that may affect attention, impulse control, and require behavior strategies within ABA plans
`F88`	Other disorders of psychological development	Captures developmental disorders not elsewhere classified that may benefit from adaptive behavior treatment

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`0364T`	Adaptive behavior treatment by protocol, administered by technician, face-to-face with one patient; each additional 30 minutes	Companion code representing technician-delivered adaptive behavior treatment for additional time units beyond base service
`97153`	Adaptive behavior treatment by protocol, administered by technician, face-to-face with one patient; each 15 minutes	Current CPT code used for time-based technician-delivered ABA sessions in 15-minute increments
`97155`	Adaptive behavior treatment with protocol modification, administered by physician or other qualified health care professional with one patient; each 15 minutes	Used when a qualified clinician modifies the ABA protocol during direct patient care
`97156`	Family adaptive behavior treatment guidance, administered by physician or other qualified health care professional (with or without the patient present); each 15 minutes	Used for caregiver training and guidance to generalize behavioral interventions into the home or school environment

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

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Clinical & Coding Specifications

Clinical Context

Coding Specifications

Modifier	Description	When to Use
`25`	Significant, separately identifiable evaluation and management service by the same physician on the same day of the procedure	Use when an E/M visit is provided on the same day as an adaptive behavior treatment session and medical decision-making or history/exam is separately documented
`59`	Distinct procedural service	Use when a distinct behavioral procedure is performed on the same day as another reportable service and documentation supports distinctiveness
`76`	Repeat procedure or service by same provider	Use when an adaptive behavior session is repeated later the same day by the same provider
`77`	Repeat procedure by another provider	Use when a second clinician repeats the same procedure on the same day
`GT`	Via interactive audio and video telecommunications (telehealth)	Use when services are delivered via real-time telehealth if payer recognizes this modifier
`95`	Synchronous telemedicine service rendered via real-time interactive audio and video	Use for synchronous telehealth delivery when required by the payer
`KX`	Requirements specified in the medical policy have been met	Use when payer medical necessity documentation requirements for ABA services are met
`GA`	Waiver of liability statement on file (patient has been informed financial liability may apply)	Use when services are provided under a voluntary non-covered waiver and documentation supports patient acknowledgment
`GZ`	Item or service expected to be denied as not reasonable and necessary	Use when the provider furnishes service but expects denial for medical necessity
`GP`	Services delivered under a physical therapy plan of care	Use only if an ABA-related activity is billed under physical therapy arrangements per payer rules (rare)
`EP`	Episode of care (Medicare hospice)	Use in rare circumstances where services intersect hospice episode reporting rules
`XE`	Separate encounter, distinct from other service on the same day	Use when the ABA session occurred in a separate encounter distinct from other services
`EB`	Evidence of eligibility on file	Use when payer requires documentation of eligibility for program participation
`QS`	Monitored anesthesia care service converted to general anesthesia (Not typically applicable)	Generally not applicable; included for completeness in complex service bundles

Taxonomy Code	Specialty	Notes
`103K00000X`	Behavioral Analyst	Board Certified Behavior Analysts provide supervision, protocol development, and modification of adaptive behavior treatment
`103T00000X`	Psychologist	Clinical psychologists perform assessments, diagnostic evaluation, and supervise behavioral interventions
`101YM0800X`	Mental Health Counselor	Mental health counselors may deliver family guidance and participate in treatment planning

Related Diagnoses

ICD-10 Code	Description	Clinical Relevance
`F84.0`	Autistic disorder	Primary diagnosis commonly associated with adaptive behavior treatment; ABA targets core social-communication deficits and maladaptive behaviors
`F84.5`	Asperger's syndrome	Developmental disorder within the autism spectrum where ABA techniques address social skills, routines, and behavior management
`F84.9`	Pervasive developmental disorder, unspecified	Used when a pervasive developmental disorder is present but specific subtype is unspecified; supports need for behavioral intervention
`F90.9`	Attention-deficit hyperactivity disorder, unspecified type	Co-occurring condition that may affect attention, impulse control, and require behavior strategies within ABA plans
`F88`	Other disorders of psychological development	Captures developmental disorders not elsewhere classified that may benefit from adaptive behavior treatment

Related CPT Codes

CPT Code	Description	Relationship to This Procedure
`0364T`	Adaptive behavior treatment by protocol, administered by technician, face-to-face with one patient; each additional 30 minutes	Companion code representing technician-delivered adaptive behavior treatment for additional time units beyond base service
`97153`	Adaptive behavior treatment by protocol, administered by technician, face-to-face with one patient; each 15 minutes	Current CPT code used for time-based technician-delivered ABA sessions in 15-minute increments
`97155`	Adaptive behavior treatment with protocol modification, administered by physician or other qualified health care professional with one patient; each 15 minutes	Used when a qualified clinician modifies the ABA protocol during direct patient care
`97156`	Family adaptive behavior treatment guidance, administered by physician or other qualified health care professional (with or without the patient present); each 15 minutes	Used for caregiver training and guidance to generalize behavioral interventions into the home or school environment

References

1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.

Published by

Trek Health powers OpenPayer with a leading commercial payer intelligence platform, seamlessly converting fragmented payer data into actionable insights for provider organizations.