A home health order names a service and the discipline that will furnish it. It does not name a licence class. That is why a physical therapist assistant works under the physical therapy order, an occupational therapy assistant under the occupational therapy order, and a licensed practical or vocational nurse under the skilled nursing order. Their visits are visits of the parent service, counted against that service's frequency.
I have watched agencies lose weeks to this. A scheduler refuses to assign a PTA because "there is no PTA order." A biller holds a claim because the plan of care says "PT 2w4" and the notes say "PTA." A QA nurse flags an LPN wound visit as "not ordered." None of those are what the regulations say. This article lays out what the order is, who may furnish it, and the two separate rules that people blur into this one: the therapist has to evaluate first, and the therapist has to come back every 30 days.
What an Order Is
Medicare's plan of care rule describes the order in terms of treatment, discipline and frequency:
"The physician or allowed practitioner's orders for services in the plan of care must specify the medical treatments to be furnished as well as the type of home health discipline that will furnish the ordered services and at what frequency the services will be furnished." (42 CFR 409.43(b))
The plan of care itself must include "the identification of the responsible discipline(s) and the frequency and duration of all visits" (42 CFR 409.43(a)(3)(i)(A)) and, under the Conditions of Participation, "the types of services, supplies, and equipment required" and "the frequency and duration of visits to be made" (42 CFR 484.60(a)(2)(iii) and (iv)).
Discipline. Service. Frequency. Nowhere does the order specify which licence within the discipline carries it out. "Physical therapy, 2 times a week for 4 weeks" is an order for physical therapy. Who furnishes each visit is a question answered by the staffing rules, not by the order.
Who May Furnish Each Service
The coverage regulations define each skilled service in a way that already includes the assistant.
| The order says | Who may furnish it | Source |
|---|---|---|
| Skilled nursing | "those services that must, under State law, be performed by a registered nurse, or practical (vocational) nurse, as defined in § 484.115" | 42 CFR 409.44(b)(1) |
| Physical therapy | A qualified physical therapist, or a physical therapist assistant under the supervision of a physical therapist | 42 CFR 484.75(c)(2); Benefit Policy Manual ch. 7, 40.2.1(d)(1) |
| Occupational therapy | A qualified occupational therapist, or an occupational therapy assistant under the supervision of an occupational therapist | 42 CFR 484.75(c)(2); Benefit Policy Manual ch. 7, 40.2.1(d)(1) |
| Speech-language pathology | A qualified speech-language pathologist | 42 CFR 484.115 |
For nursing, the Benefit Policy Manual says the services "must require the skills of a registered nurse, or a licensed practical (vocational) nurse under the supervision of a registered nurse" (chapter 7, section 40.1). The LPN is inside the definition of skilled nursing. For therapy, the manual's coverage condition is that "the skills of a qualified therapist, or by a qualified therapist assistant under the supervision of a qualified therapist, are needed" (section 40.2.1(d)(1)). The assistant is inside the definition of skilled therapy.
The Conditions of Participation then say who supervises whom:
"(1) Nursing services are provided under the supervision of a registered nurse ... (2) Rehabilitative therapy services are provided under the supervision of an occupational therapist or physical therapist" (42 CFR 484.75(c))
And the personnel definitions close the loop. A licensed practical nurse is "a person who ... furnishes services under the supervision of a qualified registered nurse" (42 CFR 484.115). The occupational therapy assistant and physical therapist assistant definitions sit in the same section, as the assistant members of their disciplines.
Put together: an LPN visit is a skilled nursing visit. A PTA visit is a physical therapy visit. A COTA visit is an occupational therapy visit. Each counts against the frequency ordered for that service.
Info
The lines do not cross. A PTA works under physical therapy, not occupational therapy, even in a patient who has both. A COTA works under occupational therapy. An LPN works under skilled nursing. The assistant inherits the order of their own discipline, and only that one.
Two Rules That Are Not This Rule
This is where the confusion comes from. Two real requirements limit what an assistant can do, and people read them as "assistants need their own order." They do not. They are about sequence and supervision.
Rule one: the therapist evaluates first
"The patient's function must be initially assessed and periodically reassessed by a qualified therapist, of the corresponding discipline for the type of therapy being provided" (42 CFR 409.44(c)(2)(i)(A))
"The therapy goals must be established by a qualified therapist in conjunction with the physician or allowed practitioner." (42 CFR 409.44(c)(1)(i))
The Benefit Policy Manual restates it for each discipline: "a qualified therapist (instead of an assistant) must assess the patient's function using a method which objectively measures activities of daily living" (chapter 7, section 40.2.1(b)(i)). So a PTA cannot open a physical therapy case. The PT evaluates, measures, sets the goals, and then the PTA's treatment visits are covered physical therapy visits under that plan.
This is a sequencing rule inside the physical therapy order. It is not evidence that a separate PTA order exists.
Rule two: the therapist comes back every 30 days
"At least every 30 calendar days a qualified therapist (instead of an assistant) must provide the needed therapy service and functionally reassess the patient" (42 CFR 409.44(c)(2)(i)(B))
The manual adds the clock: "The 30-day clock begins with the first therapy service (of that discipline) and the clock resets with each therapist's visit/assessment/measurement/documentation (of that discipline)" (section 40.2.1(b)(ii)). If the discipline falls out of compliance, "therapy visits for the therapy discipline(s) not in compliance with these policies will not be covered until" the therapist completes the reassessment (42 CFR 409.44(c)(2)(i)(C)).
Note the words "instead of an assistant." The regulation assumes the assistant is furnishing the visits in between. That is the model, written into the rule.
There is no 30-day equivalent for nursing. The LPN's supervision by the RN is a Condition of Participation at 42 CFR 484.75(c)(1), with the RN's responsibilities set out at 484.75(b), but Medicare does not attach a visit-interval clock to it the way it does for therapy.
What the assistant may never do
The comprehensive assessment and the OASIS. The OASIS-E2 Guidance Manual, section 1.5.6: "A licensed practical nurse or licensed vocational nurse (LPN/LVN), physical therapist assistant (PTA), occupational therapy assistant (OTA), medical social worker (MSW), or home health aide may not be responsible for completing the comprehensive assessment and OASIS." That covers the start of care, resumption of care, recertification, follow-up and discharge assessments. An assistant can make the first visit back after a hospital stay and deliver urgent care, but an RN, PT, OT or SLP has to complete the assessment.
The Two That Have No Parent
Two disciplines look like they should inherit an order and do not.
- Home health aides. Aide services are their own line on the plan of care with their own frequency. They are not a qualifying skilled service under 42 CFR 409.42(c), and an aide visit is not a nursing visit. The aide is supervised, under 42 CFR 484.80(h), but supervision is not inheritance.
- Medical social workers. The OASIS-E2 Guidance Manual says plainly that social workers "are not a qualifying Medicare home health service" (section 1.5.6). Medical social services are ordered as medical social services, supervised by a qualified social worker under 42 CFR 484.75(c)(3). An MSW visit is not a nursing visit.
| Discipline | Works under | Counts against |
|---|---|---|
| PTA | The physical therapy order | The PT frequency |
| COTA / OTA | The occupational therapy order | The OT frequency |
| LPN / LVN | The skilled nursing order | The SN frequency |
| Home health aide | Its own aide order | The aide frequency |
| MSW | Its own medical social services order | The MSW frequency |
How This Looks in a Chart
Plan of care: physical therapy, 2 times a week for 4 weeks; occupational therapy, 1 time a week for 4 weeks; skilled nursing, 1 time a week for 4 weeks.
| Week | Visit | Counted as | Why |
|---|---|---|---|
| 1 | PT evaluation (PT) | PT 1 of 2 | Qualified therapist assesses and sets goals first |
| 1 | PT treatment (PTA) | PT 2 of 2 | Assistant furnishes physical therapy under PT supervision |
| 1 | OT evaluation (OT) | OT 1 of 1 | Same rule, corresponding discipline |
| 1 | SN visit (LPN) | SN 1 of 1 | LPN furnishes skilled nursing under RN supervision |
| 2 | PT treatment (PTA), PT treatment (PTA) | PT 2 of 2 | Still inside the 30 days from the PT's first visit |
| 2 | OT treatment (COTA) | OT 1 of 1 | Assistant under OT supervision |
| 4 | PT reassessment (PT) | PT 1 of 2 | The therapist's 30-day visit; the clock resets |
Nothing in that table needed a "PTA order." Everything in it needed the PT to go first and to come back by day 30.
Warning
State practice acts sit on top of all of this. Several states limit what a PTA or COTA may do, how often the supervising therapist must be on site, or whether an LPN may perform a given procedure. Medicare's rules are the floor. Check your state's board rules before you build a staffing pattern around them.
Assistant visits land on the right order
Logicly counts a PTA visit against the physical therapy frequency and a COTA visit against occupational therapy, holds assistant treatment visits until the therapist's evaluation is on the chart, and tracks the 30-day therapist reassessment for each discipline.
Key Takeaways
- An order names a service, a discipline and a frequency. It never names a licence class.
- A PTA furnishes physical therapy. A COTA furnishes occupational therapy. An LPN furnishes skilled nursing. Each visit counts against its parent service's frequency.
- The therapist evaluates first and sets the goals. That is a sequence rule inside the order, not a second order.
- A qualified therapist, instead of an assistant, must treat and reassess at least every 30 calendar days, per discipline. The clock resets at each therapist visit.
- Assistants never complete the comprehensive assessment or the OASIS.
- Aides and social workers have their own orders. They inherit nothing.
Frequently asked questions
Does a PTA need a separate order to see a home health patient?
No. A physician's order names a service and a discipline, not a licence class. A physical therapist assistant furnishes physical therapy under the supervision of a physical therapist, so a PTA visit is a physical therapy visit and counts against the physical therapy frequency on the plan of care. There is no such thing as a PTA order.
Can an assistant make the first therapy visit?
Not as a covered treatment visit. Medicare requires that the patient's function be initially assessed by a qualified therapist of the corresponding discipline, and that the therapy goals be established by a qualified therapist. The assistant's treatment visits start after the therapist's evaluation.
How often does the therapist have to see a patient who is being treated by an assistant?
At least every 30 calendar days. 42 CFR 409.44(c)(2)(i)(B) requires that a qualified therapist, instead of an assistant, provide the needed therapy service and functionally reassess the patient at least every 30 calendar days, for each therapy discipline. The clock begins with the first therapy service of that discipline and resets with each therapist visit.
Can an LPN do a skilled nursing visit in home health?
Yes. Skilled nursing care consists of services that must be performed by a registered nurse or a practical (vocational) nurse under the supervision of a registered nurse. An LPN visit is a skilled nursing visit on the skilled nursing order. What the LPN may not do is the comprehensive assessment and OASIS, which is reserved to the RN and the qualified therapists.
Does a home health aide work under the nursing order?
No. Home health aide services are their own service on the plan of care, with their own frequency, and they are not a qualifying skilled service. The same is true of medical social work. Neither rides on a nursing or therapy order the way an assistant rides on the therapist's order.
Sources
- 42 CFR 409.43: (a)(3)(i)(A) responsible disciplines and frequency in the plan of care; (b) orders specify treatment, discipline and frequency.
- 42 CFR 409.44: (b)(1) skilled nursing includes the practical (vocational) nurse; (c)(1)(i) goals set by a qualified therapist; (c)(2)(i)(A) initial assessment by a qualified therapist of the corresponding discipline; (c)(2)(i)(B) the 30-day reassessment "instead of an assistant"; (c)(2)(i)(C) non-coverage until compliance.
- 42 CFR 409.42(c): the qualifying skilled services.
- 42 CFR 484.60(a)(2): plan of care contents, including types of services and frequency.
- 42 CFR 484.75(c): supervision of nursing, rehabilitative therapy and medical social services.
- 42 CFR 484.80(h): aide supervision.
- 42 CFR 484.115: personnel qualifications, including the licensed practical (vocational) nurse, occupational therapy assistant and physical therapist assistant.
- CMS, Medicare Benefit Policy Manual, Chapter 7: section 40.1 (skilled nursing, including the LPN under RN supervision), section 40.2.1(b) (initial assessment and 30-day reassessment by a qualified therapist instead of an assistant), section 40.2.1(d)(1) (therapist or assistant under supervision).
- CMS, OASIS-E2 Guidance Manual, section 1.5.6 (who may complete the comprehensive assessment and OASIS).
- Related on this site: supervisory visit requirements, home health visit frequency guide, resumption of care guide.