Summary & Overview
HCPCS E2504: Speech-Generating Device, Digitized Speech (20–40 min)
HCPCS Level II code E2504 denotes a speech-generating device with digitized speech using pre-recorded messages and recording capacity greater than 20 minutes up to 40 minutes. These assistive communication devices are important for patients with complex speech impairments due to neurological conditions, progressive diseases, or congenital disorders. Nationally, the code matters because it defines coverage categories for durable medical equipment and guides providers and payers on device classification and billing.
Key payers covered include Aetna, Blue Cross Blue Shield, Cigna Health, UnitedHealthcare, and Medicare. Readers will find an overview of reimbursement benchmarks and coding context, typical sites of service such as outpatient clinics, rehabilitation centers, and home use, and a summary of clinical use cases where digitized-message devices are appropriate. The publication outlines common modifiers and payer considerations where available and highlights areas labeled "Data not available in the input" when specific fields were not provided.
This summary equips billing staff, clinicians, and policy analysts with the core definition of E2504, the service type, and the national payer scope. It offers a concise basis for further review of reimbursement policy, documentation requirements, and device selection criteria across major payers.
Billing Code Overview
HCPCS Level II code E2504 describes a speech generating device with digitized speech that uses pre-recorded messages and provides greater than 20 minutes but less than or equal to 40 minutes recording time. The service is the provision or durable medical equipment supply of a communication device designed to generate spoken output from stored, pre-recorded messages.
Service Type: Durable medical equipment / Assistive communication device
Typical Site of Service: Outpatient clinics, rehabilitation centers, home use
Data not available in the input.
Clinical & Coding Specifications
Clinical Context
A typical patient is an adult or pediatric individual with severe expressive communication impairment due to neurologic conditions such as amyotrophic lateral sclerosis, cerebral palsy, stroke with aphasia, traumatic brain injury, or progressive neuromuscular disease. The patient has intact cognition or sufficient receptive language and requires an augmentative and alternative communication (AAC) device that uses digitized, pre-recorded messages. The ordering clinician—often a speech-language pathologist or a physician experienced in AAC—documents functional communication deficits, trial outcomes with low-tech strategies, and objectives for a speech generating device (SGD).
The clinical workflow includes evaluation by a speech-language pathologist to determine candidacy, selection of an SGD with recording capacity between greater than 20 minutes and less than or equal to 40 minutes, customization of pre-recorded messages, device programming and training, and a formal device trial in the clinic and/or home setting. The device is delivered when specifications meet the patient’s functional needs; training sessions with caregivers and follow-up visits for adjustment and maintenance are scheduled. Durable medical equipment suppliers coordinate billing and supply documentation and may include device set-up and basic instruction as part of the service.
Coding Specifications
| Modifier | Description | When to Use |
|---|---|---|
00 | Unspecified | Rarely used; reserved when no other modifier applies |
22 | Increased procedural services | Use when additional work beyond typical device provision is medically necessary and documented (e.g., extensive customization or programming) |
26 | Professional component | Use when reporting only the professional component of a service related to device fitting or programming provided by a clinician |
52 | Reduced services | Use when a partial or limited device service is furnished relative to usual practice |
53 | Discontinued procedure | Use when device provision or programming is started but discontinued due to patient condition |
62 | Two surgeons | Use when two practitioners share responsibility for device selection or complex interdisciplinary fitting |
78 | Return to operating/procedure room for related procedure during postoperative period | Rarely applicable; use if device requires surgical revision in a related episode |
80 | Assistant at surgery | Rare for this service; use if an assistant is documented during a related surgical placement |
82 | Assistant not available | Use when an assistant is not available but would normally assist during a related procedure |
TC | Technical component | Use when billing only the technical component of device supply, programming, or equipment set-up by the supplier |
UE | Left upper extremity | Use when laterality coding is required for accessories or prosthetic interfaces tied to the left upper extremity |
| Taxonomy Code | Specialty | Notes |
|---|---|---|
253G00000X | Speech-Language Pathology | Primary evaluators and device recommenders for SGD selection and training |
207L00000X | Physical Medicine & Rehabilitation | Manages overall functional goals and coordinates device needs for neurologic patients |
207K00000X | Neurology | Diagnoses neurologic conditions and documents medical necessity for an SGD |
1223S0001X | Assistive Technology Supplier | Provides the SGD hardware, programming, and technical support |
208D00000X | Pediatrics | Pediatric specialists involved when the patient is a child requiring developmental considerations |
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|---|---|
G12.21 | Amyotrophic lateral sclerosis | Progressive motor neuron disease causing loss of verbal motor control; SGD supports communication |
G80.0 | Spastic quadriplegic cerebral palsy | Motor speech impairment in a pediatric or adult patient needing AAC |
I69.91 | Sequelae of cerebral infarction, unspecified residual deficit | Post-stroke aphasia or dysarthria leading to need for SGD |
S06.5X0A | Traumatic subdural hemorrhage without loss of consciousness, initial encounter | TBI-related expressive language impairment requiring SGD during recovery |
G35 | Multiple sclerosis | Progressive speech and motor deficits where an SGD facilitates communication |
R47.01 | Aphasia | Primary diagnosis indicating impairment of language expression/reception; direct indication for SGD |
R47.1 | Dysarthria and anarthria | Motor speech disorders that impair verbal production; SGD provides an alternative output |
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|---|---|
92507 | Treatment of speech, language, voice, communication, and/or auditory processing disorder; individual | Speech-language pathology evaluation and therapy sessions that support SGD candidacy and training |
92601 | Evaluation of oral and pharyngeal swallowing function; limited (e.g., bedside) | Often performed in patients with dysphagia who may also need communication support considerations |
92602 | Evaluation of oral and pharyngeal swallowing function; moderate | For more detailed assessment when feeding and communication needs overlap |
97150 | Therapeutic procedure(s), group (e.g., communication or AAC group) | Group training sessions for caregivers or multiple users on device use |
97760 | Orthotic(s)/prosthetic(s) training, upper extremity(s), initial encounter | When device requires specialized mounting or upper-extremity interface and training |
99070 | Supplies and materials provided by the physician over and above those usually included with the office visit | For additional consumable accessories or custom recording media related to SGD |