Summary & Overview
CPT 99304: Initial Nursing Facility Evaluation and Management, Low Complexity
CPT code 99304 is a critical billing code for initial evaluation and management services in nursing facilities, representing a detailed history and physical examination with low complexity medical decision making. This code is widely used by physicians specializing in geriatric, family, and internal medicine to document and bill for the first encounter with patients in nursing facility settings. Nationally, CPT 99304 is recognized by major payers including Aetna, Blue Cross Blue Shield, Cigna Health, Medicare, and UnitedHealthcare, ensuring broad coverage for providers and patients.
This publication provides a comprehensive overview of CPT 99304, including its clinical context, typical site of service, and comparison to related codes such as 99305 and 99306. Readers will gain insight into payer coverage, common billing modifiers, and associated diagnoses relevant to initial nursing facility care. The analysis also highlights policy updates and benchmarks that impact reimbursement and compliance for this service. Understanding CPT 99304 is essential for healthcare professionals navigating the complexities of medical billing, documentation, and payer requirements in post-acute care environments.
CPT Code Overview
CPT 99304 is used for initial evaluation and management services provided to patients in a nursing facility. This code includes a detailed history and physical examination, along with medical decision making of low complexity. The typical time spent for this service is 25 minutes. The service is classified as Evaluation and Management – Initial nursing facility care and is most commonly performed in a Nursing Facility (Place of Service code 32).
Clinical & Coding Specifications
Clinical Context
A patient is newly admitted to a nursing facility, such as a skilled nursing or long-term care facility (Place of Service code 32). The provider, often a geriatric medicine, family medicine, or internal medicine physician, conducts an initial evaluation and management service. This includes a detailed history, a physical examination, and medical decision making of low complexity. The typical time spent is 25 minutes. The visit may be prompted by a general medical examination, age-related debility, or other malaise, and is documented as the initial care provided upon admission.
Coding Specifications
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Modifier
25: Used when a significant, separately identifiable evaluation and management service is performed by the same physician on the same day as another procedure or service. -
Modifier
AI: Indicates the principal physician of record for the patient in the nursing facility.
| Modifier Code | Description |
|---|---|
25 | Significant, Separately Identifiable Evaluation and Management Service by the Same Physician on the Same Day of the Procedure or Other Service |
AI | Principal Physician of Record |
Associated Provider Taxonomies:
| Taxonomy Code | Specialty |
|---|---|
207RG0300X | Geriatric Medicine Physician |
207Q00000X | Family Medicine Physician |
207R00000X | Internal Medicine Physician |
Related Diagnoses
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Z00.00: Encounter for general adult medical examination without abnormal findings- Used when the initial nursing facility care involves a routine examination and no abnormalities are found.
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Z00.01: Encounter for general adult medical examination with abnormal findings- Used when the initial examination reveals abnormal findings requiring further evaluation or management.
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Z02.89: Encounter for other administrative examinations- Used when the visit is for administrative purposes, such as pre-admission or regulatory requirements.
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R53.81: Other malaise- Used when the patient presents with general symptoms of malaise, which may prompt initial evaluation and management.
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R54: Age-related physical debility- Used when the patient is admitted due to age-related decline in physical function, necessitating initial nursing facility care.
Related CPT Codes
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99305: Includes a comprehensive history and physical examination and medical decision making of moderate complexity. Typical time spent is 35 minutes.- Used for initial nursing facility care when the patient's condition requires more complex evaluation and management than
99304.
- Used for initial nursing facility care when the patient's condition requires more complex evaluation and management than
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99306: Includes a comprehensive history and physical examination and medical decision making of high complexity. Typical time spent is 45 minutes.- Used for initial nursing facility care when the patient's condition requires the highest level of complexity in evaluation and management.
Both 99305 and 99306 are alternatives to 99304 and are selected based on the complexity of the patient's condition and the required medical decision making. These codes are not typically used together for the same patient encounter.
National Reimbursement Benchmarks
Nationally, the mean rate for CPT code 99304 is $83.40 for Medicare, while the average commercial rate (BUCA) is $102.95. Commercial payers such as Cigna and UnitedHealth Group offer higher mean rates, at $120.42 and $116.36 respectively, compared to both Medicare and BUCA.
Rate dispersion, measured by the difference between the 75th and 25th percentiles, varies significantly across payers. Medicare exhibits the tightest range ($5.00), indicating minimal variation in rates. In contrast, Cigna shows the widest dispersion ($67.00), followed by UnitedHealth Group ($66.00) and Blue Cross Blue Shield ($42.00), reflecting greater variability in commercial reimbursement. The table and chart below present the full breakdown of national benchmarks for each payer.
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