HCPCS code T1002 – Registered nurse home health services

Key takeaways

HCPCS code T1002 covers registered nurse home health services billed per 15-minute unit under Medicaid, not Medicare.

T1002 is a Medicaid code only. Medicare uses G0299 for direct skilled RN nursing visits in home health.

Bill T1003 instead when an LPN or LVN performed the visit, whoever is assigned to the case.

Most Medicaid programs and managed care organizations require prior authorization before T1002 services begin.

Pabau, the practice management platform we build, ties each visit note to the claim, from eligibility checks to remittance posting.

HCPCS code T1002: Definition and quick reference

HCPCS code T1002 is the billing code for registered nurse (RN) services in a home health setting, paid by Medicaid per 15-minute unit. The official CMS descriptor reads: RN services, up to 15 minutes. It sits in the T-code series of HCPCS Level II, national codes that CMS maintains for state Medicaid agencies. T-codes are not part of the Medicare fee schedule. A T1002 claim sent to Medicare Part A or Part B is a coding error and gets denied.

Official code description and T1002 billing unit structure

T1002 billing unit structure uses a 15-minute increment as one unit of service. A 60-minute RN home visit therefore generates 4 units billed on a single claim line. Most state Medicaid programs expect time documented to the minute, with time-in and time-out entries. A partial unit under 8 minutes is typically not paid as a full unit. Check your state Medicaid billing manual for the rounding threshold, because some managed Medicaid plans apply a different rule.

What HCPCS code T1002 covers and what it does not

T1002 covers skilled nursing services performed by a credentialed RN in the patient’s home or in a home-and-community-based services setting. The key word is “skilled.” The clinical task must require RN-level training and judgment, so companion care, homemaking, and basic assistance do not qualify.

Covered services:

• RN clinical assessment and patient evaluation
• Wound care, dressing changes, and wound monitoring
• Medication administration, titration oversight, and patient education on medication regimens
• IV infusion management and catheter care
• Care plan oversight and coordination with the treating physician
• Patient and caregiver education on skilled clinical tasks

Not covered under T1002:

• Companion or personal care services, which bill under T1019 or the applicable home health aide code
• Non-skilled activities of daily living (bathing, meal preparation, transportation)
• Services provided in an inpatient facility, SNF, or hospital setting
• Physician evaluation and management services
• LPN or LVN services, which bill under T1003

T1002 vs T1003: Registered nurse vs licensed practical nurse

T1002 covers RN services, while T1003 covers LPN and LVN services. The two are not interchangeable, and billing T1002 for an LPN visit is upcoding that triggers audits. The clinical distinction matters. An RN can independently assess, plan, and delegate skilled care. An LPN works under RN or physician supervision and cannot independently perform assessment or care planning. If an LPN performed the visit, bill T1003 even when an RN is also assigned to the case.

The T1000 code family: Placing HCPCS code T1002 in context

HCPCS code T1002 belongs to a family of Medicaid nursing codes that run from T1000 to T1005. Coders who work across several home health programs meet these codes together, and cross-code errors within the family are common. The table below maps the full series.

T1002 vs G0299: Medicaid vs Medicare RN home visits

T1002 is a Medicaid code, and G0299 is the Medicare code for direct skilled RN nursing in home health or hospice. Both bill in 15-minute units, so the payer decides which one goes on the claim. For dual-eligible patients, the correct code depends on which program is the primary payer for that claim. When Medicare is primary, bill G0299 through the home health benefit. When Medicaid is primary (or for HCBS waiver services that fall outside the Medicare home health benefit), bill T1002.

Verify which program holds primary responsibility for the specific service before you submit. Your state Medicaid program can confirm how HCBS waiver services interact with the Medicare home health benefit. The diagram below runs the payer, task, and credential checks in the order a coder should ask them.

Which payers accept HCPCS code T1002?

HCPCS code T1002 is accepted by Medicaid programs, not by Medicare fee-for-service. The three main program types that use T1002 are listed below.

• State Medicaid fee-for-service (FFS): Direct state Medicaid coverage for home health nursing services. Rate and coverage rules are set by each state’s Medicaid agency and published in state billing manuals.
• Medicaid managed care organizations (MCOs): States that contract with MCOs require providers to follow each MCO’s billing policies. Those policies may add prior authorization requirements beyond the state FFS baseline.
• Home and community-based services (HCBS) waiver programs: T-codes such as T1002 are used by state Medicaid agencies, including for HCBS waiver services under 1915(c) authority. Coverage rules vary by waiver type and state.

Because each state runs its own Medicaid program, coverage rules, rate schedules, and authorization requirements differ from state to state. Always verify T1002 policy in your state’s Medicaid provider manual before billing.

Documentation requirements for T1002 claims

Documentation for T1002 must demonstrate that a credentialed RN performed a medically necessary skilled service under a valid physician order and plan of care. Missing or incomplete documentation is a frequent audit finding for home health T-code claims. The same visit notes decide whether a Medicaid audit passes and whether a denied claim wins on appeal.

Required documentation elements for each T1002 claim:

• Valid physician order authorizing home health nursing visits, including the type of skilled service and frequency
• Signed plan of care (or plan of treatment) with an active period covering the date of service
• Visit notes documenting the specific skilled services performed during the visit
• Time-in and time-out stamps to support the number of units billed
• RN credential verification on file (license number, state of licensure, expiration date)
• Medical necessity documentation linking the patient’s clinical condition to the need for skilled RN services
• Patient consent for home health services
• Prior authorization approval number, where required by the payer

Documentation must map directly to the units billed. If 4 units are billed (60 minutes), the visit note must clearly account for 60 minutes of skilled RN activity. Notes that describe clinical tasks but omit time stamps routinely trigger denials on post-payment audit.

Common modifiers used with HCPCS code T1002

Modifiers for T1002 vary by state Medicaid program and MCO contract. The table below covers the most commonly required modifier types. Always confirm which modifiers your specific payer requires before submitting.

Why T1002 claims get denied and how to fix them

T1002 claim denials follow predictable patterns. Most originate from one of six root causes. Identifying the specific Claim Adjustment Reason Code (CARC) on the remittance advice is the fastest way to pinpoint the problem and correct the claim. Linking visit documentation directly to billing catches most of these errors before submission.

For what each CARC and RARC on a remittance file means, see our guide to denial codes in medical billing.

How to bill HCPCS code T1002 correctly: Step-by-step

Accurate T1002 billing requires a sequential workflow that begins before the first visit. A lapsed eligibility check or a missing PA rarely surfaces until the claim is denied weeks later. Working through these steps in order prevents most of the denial patterns above.

Pabau’s claims management software carries each of these stages, from eligibility verification through remittance posting.

1. Verify Medicaid eligibility: Confirm the patient is active on Medicaid for the date of service. Check the specific program type (FFS, MCO, HCBS waiver) and confirm T1002 is a covered service under that program.
2. Obtain physician order and plan of care: Secure a signed physician order before the first visit. The plan of care must specify the type of skilled nursing service, visit frequency, and duration. Keep a copy in the patient record.
3. Obtain prior authorization: Submit a PA request to the Medicaid program or MCO with the clinical documentation supporting medical necessity. Record the PA approval number, authorized units, and authorization period in the patient record.
4. Document the visit with time stamps: The RN must record time-in and time-out for each visit. Visit notes must describe the specific skilled tasks performed and their clinical justification. Notes should be completed on the day of service, not retrospectively.
5. Calculate units: Divide the documented service time by 15 to calculate the number of billable units. Apply the state’s rounding rule to any partial increment. Confirm that the units billed do not exceed the PA-authorized quantity.
6. Submit on the correct claim form: T1002 is usually submitted on the CMS-1500 claim form or its electronic equivalent, the 837P transaction. Use the institutional UB-04/837I where your state Medicaid program requires it. Include the PA number in the appropriate field. Attach any required modifiers per the payer’s billing manual.
7. Work the remittance: When the explanation of benefits (835 file) returns, reconcile each line. For any denied T1002 line, identify the CARC code, correct the root cause, and resubmit or file an appeal within the payer’s timely filing window.

Reimbursement rates for HCPCS code T1002

T1002 reimbursement rates are set state by state. The CMS HCPCS overview describes the Level II code set, and T-codes carry no national Medicare fee schedule. Each state Medicaid agency publishes its own rate, which typically changes annually. Rates also vary between state FFS programs and managed Medicaid MCOs, which negotiate their own fee schedules independently of the state FFS rate.

To find your state’s current T1002 rate:

• Search your state Medicaid agency’s website for the current home health or personal care services fee schedule
• Filter by HCPCS code T1002 or by the nursing services section of the schedule
• Confirm the effective date of the rate, as annual updates typically take effect on July 1 or January 1
• For MCO rates, contact the MCO’s provider relations team directly, as these may differ from the state FFS published rate

The AAPC HCPCS code lookup is a useful reference for descriptors and categories. Reimbursement amounts still come from state Medicaid fee schedules. The CMS Physician Fee Schedule search tool covers Medicare rates but not T-code Medicaid rates.

How Pabau keeps T1002 claims tied to the visit note

In many home health agencies the RN writes the visit note in one system and a biller rebuilds the claim in another. Time stamps, the nurse’s credential, and the PA unit balance all get retyped. Each retyped field is a chance to bill T1002 for an LPN visit or to run past the authorized units.

In Pabau, the visit note, the clinician’s credential, and the authorization live on the same patient record as the claim. Units come from the documented time-in and time-out. The claim carries the code that matches the nurse who signed the note.

The outcome is a T1002 claim your documentation already supports when an auditor asks for it. Billing staff work fewer denials and spend less time reconciling remittances by hand.

Keep every T1002 unit tied to its visit note

Pabau links RN visit notes, time stamps, and prior authorizations to the claim. Billing staff submit units the record supports and spend less time on denials.

Book a demo

Conclusion

T1002 rarely fails on the descriptor. It fails on the facts around the visit: which program pays that day, which nurse walked in, and how many authorized units remain. Settle those three before the first visit, and the claim mostly codes itself.

The trade-off is front-loaded work. Eligibility checks, PA tracking, and minute-level notes take time each week, but they cost less than reworking denied claims. Book a demo to see how Pabau links RN visit notes to Medicaid claims in one record.

Continue your research

Billing the LPN visits too? HCPCS code T1003 covers the LPN and LVN counterpart to T1002, with its own unit and documentation rules.

Working a dual-eligible case? HCPCS code G0299 explains the Medicare code for skilled RN visits in home health and hospice.

Need a refresher on how medical billing works end to end? What is medical billing covers the full revenue cycle from patient registration through claim adjudication.

Want to understand denial codes on your remittance advice? Denial codes in medical billing breaks down CARC and RARC codes used across payer 835 files.

Handling the Medicare side of home health? Medicare billing walks through claims, coverage rules, and submission for Medicare patients.

Frequently asked questions