How AI Handles Medical Billing for Telehealth Visits Across State Lines

The Multi-State Telehealth Billing Puzzle

Telehealth expanded dramatically and permanently after 2020, but the billing infrastructure has not fully caught up. When a provider in State A sees a patient located in State B via telehealth, the billing rules depend on which state the patient is in, which payer they have, whether that payer follows the patient state rules or the provider state rules, and whether any interstate compact or emergency declaration affects the licensure and billing requirements.

There is no single set of telehealth billing rules. Medicare has one set. Each state Medicaid program has its own. Commercial payers often have their own policies that may or may not align with state law. And these rules change frequently. A practice providing telehealth across five states might need to track 20 or more different sets of billing requirements.

Place of Service and Modifier Rules

The place of service (POS) code for telehealth visits determines where the service is considered to have been provided, which affects reimbursement rates. POS 02 (telehealth provided other than in patient home) and POS 10 (telehealth provided in patient home) are the most common, but which one to use depends on where the patient is physically located during the visit.

Modifier requirements vary by payer. Some require modifier 95 for synchronous telehealth. Others require modifier GT. Some accept both. Medicare uses modifier 93 for audio-only visits. Some Medicaid programs have their own state-specific modifiers. Using the wrong modifier results in claim denials even when the service was perfectly legitimate.

AI billing systems maintain the POS and modifier rules for each payer and apply them automatically based on the visit details. When a telehealth visit is documented, the system identifies the patient location, the payer, and the visit type, then assigns the correct POS code and modifiers without the biller needing to look up the requirements manually.

Reimbursement Parity

Many states have enacted telehealth parity laws requiring that payers reimburse telehealth visits at the same rate as in-person visits. But parity laws vary by state, and some apply only to certain payers or certain service types. Some payers pay telehealth at reduced rates in states without parity requirements.

AI systems track parity requirements by state and by payer and flag situations where a telehealth claim is reimbursed below the expected rate. This helps practices identify underpayments that may violate state parity laws and pursue appropriate appeals or payer discussions.

Audio-Only Visit Billing

Audio-only telephone visits occupy a gray area in telehealth billing. Medicare covers certain audio-only visits under specific codes and conditions. Some state Medicaid programs cover them broadly. Commercial payer policies range from full coverage to no coverage. The clinical documentation requirements for audio-only visits also vary, with some payers requiring specific attestation that video was not feasible.

AI systems determine whether an audio-only visit is billable based on the payer, the service type, and the applicable state rules. When the visit is billable, the system selects the correct code and modifier. When it is not billable as telehealth, the system may suggest alternative billing pathways (like online digital evaluation codes) that might capture some revenue for the clinical work performed.

Licensure Compliance

While licensure is not strictly a billing issue, it directly affects billing because services provided by an unlicensed provider are not reimbursable. AI systems can cross-reference the provider license status in each state against the patient locations to ensure that every telehealth visit is provided by a provider licensed in the patient state (or covered under an applicable interstate compact or temporary practice authorization).

When a patient from a state where the provider is not licensed attempts to schedule a telehealth appointment, the system flags the issue before the visit occurs. This prevents the scenario where a service is provided, a claim is submitted, and the claim is denied because the provider lacked the required license in the patient state.

Staying Current

Telehealth billing rules are among the most frequently changing rules in healthcare. State legislatures pass new telehealth laws regularly. CMS updates its telehealth covered service list quarterly. Payers revise their telehealth policies in response to state law changes and their own utilization data. Manual tracking of these changes across multiple states and multiple payers is nearly impossible.

AI systems centralize the rule maintenance and push updates to the billing logic as rules change. When a state passes a new telehealth parity law, the system updates its reimbursement expectations for that state. When a payer changes its modifier requirements, the system updates the claim generation logic. This centralized approach ensures that billing stays current without requiring individual billers to monitor regulatory changes across every state. Learn more at FirmAdapt.