CurrentBlue Cross Blue Shield - Rhode IslandPolicy N/A

Medical Coverage Policy | Sensory Integration Therapy and Auditory Integration Therapy

Policy governs medical necessity and coverage stance for sensory integration therapy (SIT) and auditory integration therapy (AIT) for Medicare Advantage and Commercial products, including code-level guidance for Medicare Advantage and noncoverage for commercial autism/ developmental disorder indications.

Policy Summary

PayerBlue Cross Blue Shield - Rhode Island

PolicyMedical Coverage Policy | Sensory Integration Therapy and Auditory Integration Therapy

Policy CodePolicy N/A

Change TypeNo material change

Effective DateMar 1, 2019

Next Review Date

Key ActionWhen billing CPT 97533 for Medicare Advantage Plans, report the appropriate modifier (GN, GO, or GP) corresponding to the outpatient plan of care to ensure correct claims processing.

SourceLink

POLICY UPDATE CHANGES

No material clinical or coverage changes to policy.

1Covered Indication (Medicare Advantage)

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Coverage Summary

This policy (effective 2019-03-01, last reviewed 2023-03-15) addresses coverage and medical necessity for Sensory Integration Therapy (SIT) and Auditory Integration Therapy (AIT). The scope covers Medicare Advantage and Commercial products and outlines that SIT/AIT are considered medically necessary for acquired sensory problems from head trauma, illness, or acute neurologic events (including cerebrovascular accidents) under Medicare Advantage, while coverage stance is mixed overall given differing determinations for Medicare Advantage versus Commercial products and code-level guidance for billing and modifiers.

Policy metadata and scope

Effective Date03/01/2019

Last Review03/15/2023

StatusCURRENT

SubjectSensory Integration Therapy and Auditory Integration Therapy

PayerBlue Cross Blue Shield - Rhode Island

Scope SummaryPolicy governs medical necessity and coverage stance for sensory integration therapy (SIT) and auditory integration therapy (AIT) for Medicare Advantage and Commercial products, including code-level guidance for Medicare Advantage and noncoverage for commercial autism/developmental disorder indications.

Medical Necessity Criteria

Medicare Advantage Plans - Medically Necessary Indication

Sensory integration therapy and auditory integration therapy are considered medically necessary when ALL of the following apply:

ALL of the following

Treatment is for acquired sensory problems resulting from head trauma, illness, or acute neurologic events including cerebrovascular accidents
Services should be infrequent for these indications
Not intended for patients with progressive neurological conditions without potential for functional adaptation

Covered CPT: 97533 considered covered for Medicare Advantage Plans

Use appropriate modifier (GN, GO, GP) for correct claims processing

Coding

Covered CPT for Medicare Advantage PlansCPTCovered

97533

Sensory integrative techniques to enhance sensory processing and promote adaptive responses to environmental demands, direct (one-on-one) patient contact by the provider, each 15 minutes.

Modifiers required for correct claims processing (Medicare Advantage)Modifier

GN	Services delivered under an outpatient speech language pathology plan of care
GO	Services delivered under an outpatient occupational therapy plan of care
GP	Services delivered under an outpatient physical therapy plan of care

Not Medically Necessary CPT for Commercial ProductsCPTNot Covered

97533

Sensory integrative techniques to enhance sensory processing and promote adaptive responses to environmental demands, direct (one-on-one) patient contact by the provider, each 15 minutes.

Provider Actions / Billing

Billing Rule

Use appropriate modifier for Medicare Advantage claims

When billing CPT 97533 for Medicare Advantage Plans, report the appropriate modifier (GN, GO, or GP) corresponding to the outpatient plan of care to ensure correct claims processing.

97533
GN
GO
GP

Documentation Required

Indication documentation for Medicare Advantage medical necessity

Document that the sensory integration or auditory integration therapy is for an acquired sensory problem due to head trauma, illness, or acute neurologic event (including cerebrovascular accident) and that the patient has potential for functional adaptation; avoid use for progressive neurologic conditions.

Background & Evidence

SIT aims to improve brain processing and adaptation to sensory information using vestibular, proprioceptive, and tactile activities delivered typically one-on-one by specially trained occupational or physical therapists; sessions may be prolonged and are often part of broader occupational or cognitive rehabilitation programs. AIT involves gradual exposure to modified sounds (e.g., Berard, Tomatis methods) intended to reduce auditory hypersensitivities and improve communication and has been applied primarily in developmental and behavioral disorders such as autism.

Randomized trials and systematic reviews for SIT have been limited by small sample sizes, heterogeneous populations, and variable outcome measures; therefore evidence is not sufficiently robust to draw firm conclusions about effectiveness. For AIT, systematic reviews including a 2011 Cochrane review found studies failed to demonstrate meaningful clinical improvements, and AIT is considered not medically necessary for autism-related indications due to lack of proven efficacy.

Definitions

Evidence

Medicare Determinations

Name	Number	Type	Effective Date
Outpatient Physical and Occupational Therapy Services	L33631	LCD
Outpatient Physical and Occupational Therapy Services	L33631	LCD

Revision History

2019-03-01effective_date

Policy effective date

2023-03-15last_reviewLatest

Policy last updated / reviewed