CPT 99307 and Subsequent Nursing Facility Care: A Billing and Coding Guide
A physician sees the same nursing facility patient every few days, documents thoroughly, and still ends up with claims billed at the wrong level more often than any other visit type in the practice. Subsequent nursing facility care isn't complicated in concept — it's a routine follow-up visit — but the code selection framework changed materially in recent years, and a lot of practices are still coding it the old way. This guide walks through how CPT 99307–99310 actually work now, and where the documentation-to-code link most often breaks down.
What Is CPT 99307? CPT 99307 describes subsequent nursing facility care for a patient with a stable, recovering, or improving problem — the lowest of the four subsequent nursing facility care levels. Like the other codes in this family, it can be selected based on straightforward medical decision making or, when counseling and coordination of care dominate the visit, total time on the date of the encounter. It is not selected based on history or exam elements alone. |
The Subsequent Nursing Facility Care Code Family
CPT 99307–99310 report follow-up visits to a patient already established in a nursing facility, as distinct from the initial nursing facility care codes (99304–99306) used for the first encounter. Selection depends on medical decision making complexity or total time — not a checklist of history and exam bullet points, following the same framework CPT extended across E/M categories starting in 2023.
Code | MDM Level | Typical Time (if using time) |
99307 | Straightforward | 10–14 minutes |
99308 | Low complexity | 15–29 minutes |
99309 | Moderate complexity | 30–44 minutes |
99310 | High complexity | 45–59 minutes |
Time thresholds and MDM level definitions are set by current CPT guidance and can be revised — always verify the current-year time table and MDM elements before selecting a code, rather than relying on a figure from a prior year's guidance.
Medical Decision Making or Time: Choosing the Basis for the Code
A practice can select the code using whichever basis — MDM or time — better reflects the encounter, but the two aren't interchangeable within the same visit. MDM level depends on the number and complexity of problems addressed, the amount and complexity of data reviewed, and the risk of complications or morbidity from management decisions. Time-based selection requires total time personally spent by the billing practitioner on the date of the encounter, and that time has to be documented, not estimated after the fact.
Why Nursing Facility Coding Errors Happen
• Superbills and templates still built around the old history/exam framework
• Time documented loosely (“about 20 minutes”) instead of a specific, defensible figure
• MDM elements referenced generically instead of tied to this specific visit's problems and data
• Visit level chosen by habit rather than reviewed against the actual encounter
• Medical necessity assumed from the setting (“it's a nursing facility visit”) rather than documented for this specific encounter
What Documentation Should Establish
Whichever basis is used, documentation should make the code selection self-evident to a reviewer reading it cold: the problem(s) addressed at this visit, the data reviewed or ordered, the complexity of management decisions, and — if time is the basis — the specific total time and what activities counted toward it. Medical necessity should be clear from the clinical content itself, not implied by the frequency or setting of the visit.
Featured Question: What Documentation Supports CPT 99307? Documentation supporting 99307 should show a stable, recovering, or improving problem addressed with straightforward medical decision making — minimal data reviewed, low complexity, and low risk — or, if billed on time, roughly 10–14 minutes of documented total time on the date of the encounter. |
Common Coding and Billing Errors
Error | Why It Happens | Result | Prevention |
Level selected by habit | Same code used for every visit regardless of complexity | Downcoding or overcoding risk | Review MDM or time against this specific visit |
Vague time documentation | Time estimated instead of tracked | Time-based code unsupported on audit | Document a specific total time and what it covered |
MDM elements not tied to the visit | Generic language reused across notes | Weak support for the code level chosen | Document problems/data/risk specific to the encounter |
Diagnosis doesn't match documented problem | Diagnosis carried forward without review | Medical necessity denial | Confirm diagnosis reflects what was actually addressed |
Missing NF setting/place-of-service details | Claim data inconsistent with the visit type | Claim rejection or denial | Confirm place of service and facility details on the claim |
How a Nursing Facility Claim Actually Gets Paid
Encounter → Documentation (MDM or time) → Code Selection → Diagnosis Linkage → Claim Submission → Payer Adjudication → Payment → Denial Review → AR Follow-Up. The code selection step is where most of the downstream risk originates — a level chosen without reviewing this specific visit's documentation tends to produce either a denial or an audit finding later, not a clean claim now.
Before You Submit a Subsequent Nursing Facility Care Claim
☐ Confirm whether this claim is based on MDM or time, and document accordingly
☐ Verify the MDM elements (problems, data, risk) match this specific visit
☐ If time-based, confirm a specific documented total time, not an estimate
☐ Confirm the diagnosis reflects what was actually addressed at this encounter
☐ Verify place of service and facility information on the claim
☐ Check current payer-specific nursing facility billing requirements
Denial Risk Specific to Nursing Facility E/M
Denial Type | Common Trigger | Prevention |
Medical necessity | Documentation doesn't support ongoing need for this level of care | Document the specific clinical reason for continued NF-level management |
Level mismatch | Billed level higher than MDM or time supports | Code selection reviewed against documentation before submission |
Frequency limitation | Payer-specific visit frequency rules not checked | Verify current payer policy on NF visit frequency |
Place of service | POS code inconsistent with the facility type | Confirm POS matches the actual care setting |
Revenue Cycle Considerations for Nursing Facility Practices
High-volume nursing facility practices tend to see this code family recur across dozens of patients on a routine cycle, which means a small, systemic documentation gap — a vague time note, a habit of defaulting to one level — compounds fast across visit volume. Denial patterns specific to this code family are worth tracking separately from general E/M denials, since the root cause (documentation habit, not clinical judgment) is usually different.
How MedCloudMD Supports Nursing Facility and Long-Term Care Billing
Our team works with practices billing subsequent nursing facility care on coding accuracy review, documentation-to-code alignment, denial management, and AR follow-up — built around the specific MDM/time framework this code family uses today, not the pre-2023 model some templates still reflect.
Frequently Asked Questions
What is CPT 99307?
The lowest-level subsequent nursing facility care code, for a stable, recovering, or improving patient, selected by straightforward medical decision making or roughly 10–14 minutes of documented time.
What's the difference between 99307, 99308, 99309, and 99310?
Increasing MDM complexity or documented time — from straightforward/shortest at 99307 to high complexity/longest at 99310 — not differences in visit type.
Can subsequent nursing facility care be billed based on time?
Yes, when counseling and coordination of care dominate the visit and total time is specifically documented, as an alternative to MDM-based selection.
Why are nursing facility E/M claims denied?
Most commonly: medical necessity documentation gaps, a billed level that doesn't match the documented MDM or time, or payer-specific frequency and place-of-service issues.
What documentation supports subsequent nursing facility care codes?
Documentation reflecting the specific problems addressed, data reviewed, and risk involved in this visit — or, if time-based, a specific documented total time — not generic language reused across visits.
Did nursing facility E/M coding change recently?
Yes — CPT extended the MDM/time-based framework (removing history and exam as level-determining elements) to nursing facility E/M codes starting in 2023; some practices still use older documentation habits.
How can practices reduce nursing facility billing denials?
Review code selection against this specific visit's documentation before submission, track denials for this code family separately, and confirm current payer-specific requirements.
Disclaimer
This article is for general educational and informational purposes and does not constitute legal, coding, compliance, or reimbursement advice. CPT codes, descriptors, time thresholds, and payer policies are maintained and updated by the American Medical Association and individual payers, and can change. Verify current-year CPT guidance and payer-specific requirements before submitting claims.
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