CPT code 99305: initial nursing facility care

Key Takeaways

CPT code 99305 covers an initial nursing facility E/M visit requiring moderate medical decision making (MDM) or at least 35 minutes of total time on the date of encounter.

Post-2023 AMA guidelines eliminated mandatory history and physical exam components as level-determining factors; MDM complexity or documented time now solely determines code selection.

99304-99310 may each only be reported once per day, per beneficiary, per provider, per CMS RAC Topic 0061, making duplicate billing a top audit trigger.

Pabau’s claims management software supports structured nursing facility E/M documentation and billing workflows to reduce claim errors and denial risk.

CPT code 99305: definition and clinical description

Most nursing facility billing denials trace back to a single problem: documentation that doesn’t support the code selected. CPT code 99305 is one of the most audited codes in the initial nursing facility care family, and getting the level wrong in either direction costs practices real money.

The American Medical Association (AMA) defines CPT code 99305 as: Initial nursing facility care, per day, for the evaluation and management of a patient, which requires moderate medical decision making or 35 minutes total time on the date of the encounter. It applies to both new and established patients being seen for the first time in a nursing facility setting.

This article covers the documentation requirements, MDM criteria, time thresholds, code comparisons (99304/99305/99306), reimbursement benchmarks, and the billing errors that trigger Recovery Audit Contractor (RAC) reviews. Use this reference to reduce denials and stay audit-ready for initial nursing facility E/M visits.

CPT code 99305 documentation requirements

Since January 2023, the AMA’s updated E/M guidelines for nursing facility codes no longer require a comprehensive history and physical exam as level-determining components. What matters now is either the complexity of medical decision making or the total time spent on the encounter date.

That said, documentation must still support the MDM or time claim you’re making. Sparse notes with no clinical reasoning do not justify 99305, even if you spent 35 minutes with the patient.

What the note must contain for 99305

• Problem complexity: At least one problem with moderate complexity, or multiple problems of lower complexity that together support moderate MDM
• Data reviewed: Moderate data complexity, such as review of external records, ordering/reviewing tests, or independent interpretation of a result
• Risk of complications: Moderate risk, including prescription drug management or a new diagnosis with uncertain prognosis
• Care plan: A documented care plan reflecting the clinical decisions made at the encounter
• Time (if time-based): The total time spent on the encounter date must be documented, with a brief description of activities performed (not just the face-to-face portion)

Maintaining HIPAA-compliant clinical documentation at nursing facilities requires structured note templates that capture each of these elements consistently. Many billing errors originate from incomplete templates, not from intentional miscoding.

Medical decision making (MDM) requirements for CPT code 99305

Medical decision making for 99305 must reach the moderate threshold across all three MDM components. Two of the three components must meet or exceed moderate complexity. One component falling below moderate does not automatically disqualify the code if the other two components clearly support it.

The AAFP’s E/M time and MDM reference tables provide a useful summary of the exact thresholds for each level across the nursing facility code set.

Common MDM documentation mistakes

Copying and pasting prior notes: Clone-and-carry documentation is a top RAC audit finding. The MDM must reflect what was clinically assessed on that specific encounter date.

Documenting time without detailing activities: If you’re billing on time, noting “35 minutes” alone is insufficient. The note should describe what that time included, such as reviewing outside records, coordinating with family, and updating the care plan.

Underdocumenting prescription drug management: Initiating or adjusting a prescription medication is a moderate-risk MDM element. If you adjusted a resident’s hypertension regimen or started a new psychotropic, document that decision explicitly. It’s the clearest path to moderate MDM for many nursing facility encounters.

Time-based billing: CPT code 99305 and the 35-minute threshold

Under post-2023 AMA guidelines, providers may bill 99305 on time alone when the total time on the date of encounter reaches 35 minutes. Time includes face-to-face time with the patient and family, plus non-face-to-face time on the same date: reviewing records before the visit, documenting the note, ordering tests, and coordinating care.

Time and MDM are alternative pathways, not additive requirements. Choose the one that better supports the clinical encounter. If your visit involved complex prescription changes for a patient with unstable diabetes and heart failure, MDM will almost always be easier to document and defend.

Using structured documentation workflows at the point of care reduces the risk of time being undercounted or MDM elements being omitted. Practices that rely on narrative-only notes consistently underdocument time-intensive activities that would justify a higher-level code.

99305 vs 99304 vs 99306: choosing the right initial nursing facility code

The three initial nursing facility care codes share the same clinical setting and patient population. What separates them is the complexity of the encounter, measured through MDM or total time.

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99304: low complexity initial care

Use 99304 when the encounter involves a patient with stable, well-controlled chronic conditions requiring minimal clinical decision-making. The time threshold is 25 minutes. A common scenario: a new resident admitted from home with controlled hypertension and type 2 diabetes, no acute concerns, and a straightforward medication review.

99305: moderate complexity initial care

Use 99305 when the encounter involves one or more chronic conditions with exacerbation, a new problem with uncertain prognosis, or decisions requiring prescription drug management. The time threshold is 35 minutes. A typical 99305 scenario: a resident admitted with decompensated heart failure and cognitive decline, requiring review of outside cardiology records, adjustment of diuretics, and coordination with the facility nursing staff.

99306: high complexity initial care

Use 99306 when the encounter involves high-complexity MDM or 45 minutes of total time. High complexity means at least one acute or chronic illness posing a threat to life or bodily function, or decisions involving drug therapy requiring intensive monitoring. A 99306 scenario: a resident admitted post-stroke with aspiration pneumonia, hemodynamic instability, and a decision to initiate IV antibiotics and implement comfort care orders.

The most common upcoding error seen in RAC reviews is billing 99306 for encounters that clearly meet 99305 criteria. The second most common: billing 99305 when the resident is stable enough that 99304 is the correct code. Both directions carry audit risk. The AAPC Codify CPT code lookup provides the official code descriptors and guidelines for the full 99304-99306 range.

CPT code 99305 Medicare reimbursement rates

Medicare reimbursement for CPT code 99305 varies by geographic region, facility type, and the Medicare Physician Fee Schedule (MPFS) applicable to the calendar year. National average non-facility reimbursement rates in recent years have typically ranged from approximately $115 to $140 per encounter, though locality-adjusted rates can differ significantly.

Use the CMS Physician Fee Schedule lookup to find the exact rate for your MAC jurisdiction and the current calendar year. Always verify against the current year’s MPFS before quoting rates to billing staff, because both RVU values and conversion factors change annually.

The FastRVU 2026 RVU lookup tool provides current Work, Practice Expense, and Malpractice RVU components for 99305, which you can apply to your locality’s geographic adjustment factors (GAFs) for a precise estimate.

Place of service and facility vs non-facility rates

CPT 99305 is reported with Place of Service (POS) code 32 for skilled nursing facilities (SNFs) or POS 54 for custodial care facilities. The facility rate applies when the practice expense component is covered by the facility, which is typically the case in SNFs. Using the wrong POS code reduces reimbursement and triggers edit rejections from Medicare Administrative Contractors (MACs).

Medicaid rates for 99305 vary considerably by state and managed care plan. Some state Medicaid programs follow MPFS percentages (often 80-90% of Medicare rates), while others use fee-for-service schedules that may be substantially lower. Billing staff working across state lines should maintain separate fee schedule references for each state’s Medicaid program. Building these into your time-saving clinical workflows prevents repeated lookups during the billing cycle.

Compliance risks: CPT code 99305 audit triggers and billing errors

CMS RAC Topic 0061 identifies nursing facility services as a high-risk area for excessive units. Per official CMS guidance, CPT codes 99304 through 99310 may each be reported only once per day, per beneficiary, per provider, per date of service. Billing any of these codes more than once on the same date is an automatic overpayment and a RAC priority target.

• Duplicate billing: 99305 billed twice on the same date of service for the same patient is the leading cause of nursing facility E/M overpayments flagged by RAC reviews
• Level mismatch: Billing 99306 when documentation only supports 99305 complexity is the most common upcoding pattern for initial SNF visits
• Clone documentation: Copy-forward notes that do not reflect the specific clinical decisions made at that encounter fail to support any E/M level
• Incorrect POS code: Using non-facility POS (e.g. POS 11) instead of POS 32 for SNF visits causes incorrect reimbursement calculations
• Missing care plan: No documented care plan is a common deficiency in nursing facility initial visit notes and a basis for technical denial
• Incorrect new vs. established application: 99305 applies to both new and established patients for an initial encounter at a nursing facility; do not conflate this with the office visit new/established distinction

Practices using claims management software with built-in claim edits catch many of these errors before submission. A pre-submission scrub that flags duplicate dates, POS mismatches, and missing care plan indicators significantly reduces denials for SNF billing. Pairing this with digital intake forms that capture MDM elements at the point of care creates an audit-defensible documentation trail from the first encounter.

Related codes: prolonged services and subsequent nursing facility care

When a 99305 encounter extends significantly beyond the 35-minute threshold, prolonged service add-on codes may be billable. According to CMS Manual System Transmittal R1489CP, CPT codes 99356 and 99357 may be billed with nursing facility services including 99305.

99356 covers the first 30 minutes of prolonged face-to-face service beyond the base code’s time range, and 99357 covers each additional 30-minute increment. These add-on codes require clear documentation of the additional time and the reason the encounter extended beyond typical duration.

Subsequent nursing facility care codes (99307-99310)

After the initial encounter billed with 99304-99306, follow-up visits are coded with the subsequent nursing facility care series. The 2023 coding changes also deleted CPT 99318 (the annual nursing home exam code) and rolled annual exams into the subsequent visit codes 99307-99310. Practices still using 99318 in their charge capture workflows are submitting an invalid code.

Managing the transition from initial to subsequent care codes across a nursing facility patient panel requires clinical records that clearly flag encounter type and track previous billing dates. Miscoding a subsequent visit as an initial visit (99305 instead of 99307-99310) is another common compliance error. Your practice management software should flag when an initial code is submitted for a patient who already has an encounter on record at the same facility.

For practices managing patients across multiple facilities, mental health practice management tools that support multi-location tracking help ensure the right encounter type is selected regardless of which facility the visit occurs at. Encounter-type logic should be built into your billing workflow, not left to individual coder judgment.

Conclusion

CPT code 99305 billing errors almost always trace back to two root causes: documentation that doesn’t clearly support moderate MDM, and charge capture workflows that don’t enforce encounter-type logic. Both are process problems, not clinical ones.

Pabau’s automated billing workflows and structured clinical record templates give nursing facility billing teams the tools to capture MDM elements at the point of care, apply the correct code, and submit clean claims the first time. To see how Pabau supports nursing facility E/M billing, review our primary care compliance resources or book a demo to walk through the claims workflow directly.

Continue your research

Need a full nursing facility compliance checklist? ADHD screening CPT code billing guide covers parallel E/M documentation standards you can adapt for nursing facility workflows.

Looking for structured billing workflows for your team? HIPAA compliance for medical offices explains documentation retention and audit-readiness requirements that apply to nursing facility E/M records.

Want to reduce claim denials across your practice? Pabau’s claims management software helps practices submit cleaner claims with built-in code edits and documentation prompts.

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