Healthcare IT Glossary

What is Telehealth?
Telehealth Platform Development

A decade ago, a video visit with your doctor was a novelty. Today it’s a reimbursable clinical encounter with its own CPT codes, documentation requirements, and technology stack. Telehealth went from a convenience feature to a core delivery channel — and building a platform that handles it properly requires integrating video, clinical documentation, prescribing, scheduling, billing, and compliance into a single workflow.

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Definition of Telehealth

Telehealth is the use of electronic information and telecommunications technologies to provide and support clinical healthcare, patient education, and health administration at a distance. It encompasses a broad range of remote healthcare services — live video consultations, asynchronous store-and-forward communication, remote patient monitoring, and mobile health applications.

The terms telehealth and telemedicine are often used interchangeably, but there’s a distinction. Telemedicine refers specifically to remote clinical services — a doctor diagnosing and treating a patient via video. Telehealth is the broader category that includes telemedicine plus non-clinical services like provider training, administrative meetings, and continuing medical education delivered remotely.

For healthcare IT teams, telehealth means building or integrating platforms that support synchronous video visits, EHR documentation within the virtual encounter, e-prescribing, scheduling, patient portal integration, billing with telehealth-specific CPT codes, and HIPAA-compliant communication channels.

Telehealth adoption accelerated dramatically during the COVID-19 pandemic, when CMS expanded reimbursement for virtual visits and relaxed geographic and originating site restrictions. Many of those expansions have been extended or made permanent, establishing telehealth as a lasting component of healthcare delivery.

In simple terms: Telehealth is remote healthcare delivery using technology — and building a compliant, integrated telehealth platform requires connecting video, clinical documentation, billing, and patient engagement into a single workflow.

How Telehealth Works in Healthcare

Telehealth platforms operate across the full encounter lifecycle — scheduling, patient intake, clinical visit, documentation, prescribing, and billing.

Scheduling and pre-visit
Patients schedule telehealth visits through the patient portal, a mobile app, or front-desk staff. Pre-visit workflows include insurance verification, consent for telehealth services, intake questionnaires, and technical readiness checks (camera, microphone, browser compatibility). The scheduled visit appears on the provider’s calendar alongside in-person appointments.
Patient check-in and waiting room
At the appointment time, the patient joins a virtual waiting room — typically a browser-based or app-based interface. The platform verifies patient identity, confirms consent, and notifies the provider when the patient is ready. Some platforms support pre-visit vital sign entry from connected home devices — blood pressure, weight, glucose — feeding data into the encounter before the clinician joins.
Live video consultation
The provider and patient connect via HIPAA-compliant video. The platform must support encrypted, low-latency video with adequate resolution for clinical assessment. Features like screen sharing (for reviewing test results), in-visit chat, and multi-participant calls (for family members or interpreters) enhance the clinical experience.
Clinical documentation
The provider documents the encounter in the EHR — using the same documentation standards as in-person visits. The telehealth platform either integrates directly with the EHR (embedding documentation within the EHR’s clinical note) or operates alongside it (provider documents in the EHR while video runs in a separate window). Encounter documentation must note the modality (telehealth), the technology used, and that the patient consented to virtual care.
E-prescribing and orders
Providers can prescribe medications and order labs during telehealth visits, just as in in-person encounters. E-prescriptions flow from the EHR to the patient’s pharmacy. Lab orders are sent to the nearest specimen collection site. Imaging orders are scheduled at the appropriate facility. The telehealth platform must support these workflows seamlessly — a telehealth visit that can’t result in a prescription or lab order is clinically incomplete.
Billing and coding
Telehealth visits are billed using specific CPT codes and place-of-service codes. CMS and commercial payers have different rules for which services are reimbursable via telehealth, which modifiers to use (modifier -95 for synchronous telehealth, modifier -GT in some legacy contexts), and which place-of-service codes apply (POS 02 for telehealth provided to patient’s home, POS 10 for telehealth provided to a healthcare facility). The billing system must correctly apply telehealth-specific coding to ensure claims are paid.
Post-visit follow-up
After the visit, the platform supports post-visit workflows — visit summary delivery to the patient, follow-up appointment scheduling, care plan updates, and referral generation. Post-visit satisfaction surveys and outcome tracking support quality improvement.

Key Telehealth Standards and Specifications

Consumer video platforms like FaceTime, Zoom (standard version), and Google Meet are not HIPAA-compliant by default. HIPAA-compliant telehealth requires purpose-built or properly configured platforms with BAA coverage.

Legacy
HIPAA Compliance
Telehealth platforms that transmit or store protected health information must comply with the HIPAA Security Rule. Video communication must be encrypted end-to-end. Patient data stored by the platform must be encrypted at rest. Access controls, audit logging, and Business Associate Agreements (BAAs) must be in place with every technology vendor in the telehealth stack — video provider, cloud infrastructure, messaging service.
Legacy
CMS Telehealth Reimbursement Rules
CMS maintains a Telehealth Eligible Services List that defines which CPT codes are reimbursable when delivered via telehealth. The list is updated annually and has expanded significantly since 2020. CMS also defines geographic restrictions (largely relaxed post-pandemic), originating site requirements, provider eligibility, and documentation standards for telehealth encounters.
Legacy
State Telehealth Regulations
Telehealth regulations vary significantly by state — licensure requirements (whether a provider licensed in State A can treat a patient in State B), parity laws (requiring commercial payers to reimburse telehealth at the same rate as in-person visits), consent requirements, and prescribing restrictions. Multi-state telehealth platforms must navigate this patchwork of state regulations.
Legacy
FHIR and Telehealth
FHIR supports telehealth workflows through the Encounter resource (documenting virtual encounters with a telehealth-specific class), the Appointment resource (scheduling virtual visits), and the Communication resource (asynchronous messaging). FHIR-based telehealth integration enables interoperability between the telehealth platform, the EHR, and downstream systems like HIEs and payer data exchanges.
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Implementation Considerations

Building or deploying a telehealth platform involves video infrastructure, EHR integration, regulatory compliance, and user experience design.

Behavioral health is the largest telehealth use case. Mental health and substance use treatment account for a disproportionate share of telehealth visits. Platforms serving behavioral health need to support longer session durations, 42 CFR Part 2 privacy protections for substance use records, group therapy video capabilities, and integration with behavioral health-specific EHR documentation templates.

Video infrastructure selection
You can build on a CPaaS (Communications Platform as a Service) like Twilio, Vonage, or Daily.co, or deploy a purpose-built telehealth platform like Amwell, Teladoc, or Doxy.me. CPaaS gives you maximum customization but requires more development effort. Purpose-built platforms offer faster time-to-market but less flexibility. Either way, ensure the video layer is HIPAA-compliant with BAA coverage.
EHR integration depth matters
The most effective telehealth implementations are deeply integrated with the EHR — telehealth visits appear on the same schedule as in-person visits, clinical documentation flows into the same patient chart, and billing captures telehealth-specific codes automatically. Shallow integrations (telehealth as a separate system with manual documentation transfer) create workflow friction and documentation gaps.
RPM integration extends telehealth beyond the visit
Connecting remote monitoring devices — blood pressure cuffs, glucometers, pulse oximeters, weight scales — to the telehealth platform enables continuous care between visits. Device-generated data flows into the EHR and is available to the clinician during the next telehealth encounter, creating a longitudinal view that episodic visits alone can’t provide.
Multi-state licensure and compliance
If your telehealth program serves patients across state lines, providers must be licensed in each state where patients are located. Interstate medical licensure compacts (IMLC for physicians, NLC for nurses) simplify multi-state licensure but don’t cover all states. Build compliance tracking into your platform to prevent out-of-state encounters where the provider isn’t licensed.
Accessibility and digital equity
Not all patients have reliable broadband, modern devices, or digital literacy. Audio-only visits (reimbursable under certain CMS and payer rules), low-bandwidth video modes, multilingual interfaces, and ADA-compliant design are essential for equitable telehealth access.

How Taction Helps with Telehealth

At Taction, our team builds and integrates telehealth platforms for healthcare organizations, digital health startups, and health IT vendors.

What we do:

Whether you’re launching a new telehealth program, integrating telehealth into an existing EHR, or building a digital health product with virtual care capabilities, our healthcare engineering team delivers the clinical workflow design and technical integration these platforms demand.

Custom telehealth platform development
We build HIPAA-compliant telehealth platforms with video consultation, scheduling, intake, documentation, e-prescribing, and billing capabilities — tailored to your clinical workflows and patient population.
EHR-integrated telehealth
We integrate telehealth capabilities directly into EHR systems — embedding video within the clinical workflow, auto-populating encounter documentation, and capturing telehealth-specific billing codes without manual intervention.
RPM-connected telehealth
We connect remote monitoring devices to telehealth platforms, feeding real-time patient data into the virtual encounter and enabling continuous monitoring between visits.
Multi-state compliance
We build compliance tracking features that verify provider licensure, enforce state-specific telehealth regulations, and manage consent requirements across jurisdictions.
Mobile telehealth apps
We build patient-facing mobile applications with video visit capabilities, secure messaging, appointment scheduling, and integration with the provider’s clinical systems.

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