Timing (Early vs. Late Periods)

Timing is defined by the patient's continuous home health history, not by the agency's admission date. The first 30-day period in a sequence is early. Every adjacent period after it is late, and periods remain late for as long as care continues without a meaningful break. The sequence resets only when 60 or more days pass with no Medicare home health care; the next admission after such a gap starts a new early period. Critically, the sequence follows the beneficiary across agencies. A patient who transfers from another home health agency, or who was discharged by one agency three weeks ago, is already in a sequence, and the receiving agency's first period is late.

Medicare assigns timing from the beneficiary's claims history in its own systems, not from what the agency reports. If an agency bills a period as early and Medicare's records show recent home health elsewhere, the claims system recodes the period as late and pays accordingly. The reverse also happens when prior episodes fall outside the 60-day window. This is why remittances sometimes show a different HIPPS code than the one submitted. The operational answer is to check the patient's home health history during intake through eligibility transactions, which report prior episode dates, rather than discovering timing at adjudication.

Early periods carry higher case-mix weights than otherwise identical late periods, reflecting the concentration of assessment, care planning, teaching, and stabilization work in the first 30 days. For long-stay patients, the economics shift over time: one early period followed by a string of late periods means average revenue per period declines as the episode extends, while visit costs may not fall proportionally. Agencies with long average lengths of stay should model margin at the period level, and view recertification decisions through both a clinical necessity lens and an honest look at whether continued care remains skilled and covered.

A few timing mistakes recur across agencies:

• Assuming a patient new to your agency is an early period without checking for recent home health elsewhere
• Missing that a readmission 59 days after discharge continues the old sequence, while a readmission at day 61 starts a new one
• Treating a hospitalization as a reset, when inpatient stays do not break the home health sequence by themselves
• Budgeting all periods at early-period rates when the census skews toward long-stay, late-period patients

Eligibility checks at intake and remittance reconciliation catch most of these.