Summary & Overview
CPT 99309: Subsequent Nursing Facility Care, Moderate Complexity
CPT code 99309 is a critical billing code for subsequent nursing facility care, representing moderate complexity evaluation and management services for patients residing in nursing facilities. This code is widely used by geriatric, family medicine, and internal medicine physicians to document and bill for ongoing patient assessments that require detailed histories, examinations, and medical decision making. Nationally, CPT code 99309 is recognized by major payers including Aetna, Blue Cross Blue Shield, Cigna Health, Medicare, and UnitedHealthcare, ensuring broad coverage for these essential services.
This publication provides a comprehensive overview of CPT code 99309, including payer coverage, clinical context, and related billing codes. Readers will gain insights into benchmarks for utilization, policy updates affecting nursing facility care, and the role of this code in supporting quality patient management. The analysis also highlights common modifiers used in conjunction with CPT code 99309, associated provider taxonomies, and relevant ICD-10 diagnoses that frequently accompany this service. By understanding the nuances of CPT code 99309, healthcare professionals and administrators can better navigate the complexities of medical billing and compliance in nursing facility settings.
CPT Code Overview
CPT code 99309 is used for subsequent nursing facility care, per day, involving the evaluation and management of a patient. This code requires at least two of three key components: a detailed interval history, a detailed examination, and medical decision making of moderate complexity. The service is typically provided by physicians specializing in geriatrics, family medicine, or internal medicine. The usual site of service for CPT code 99309 is a nursing facility, designated as Place of Service 32. This code is central to ongoing patient care in nursing facilities, supporting comprehensive medical oversight for residents with complex health needs.
Clinical & Coding Specifications
Clinical Context
A typical patient scenario for CPT code 99309 involves an elderly individual residing in a nursing facility (Place of Service 32). The patient is seen by a physician specializing in family medicine, internal medicine, or geriatric medicine for a subsequent evaluation and management visit. The visit includes a detailed interval history, a detailed examination, and medical decision making of moderate complexity. Common clinical situations include ongoing management of chronic conditions such as essential hypertension, type 2 diabetes mellitus, or age-related osteoporosis. The physician assesses the patient's current status, reviews medications, evaluates for new symptoms, and updates the care plan as needed. This service is performed on a per-day basis and is part of routine care for residents in nursing facilities.
Coding Specifications
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Modifiers:
Modifier Code Description 25Significant, Separately Identifiable Evaluation and Management Service by the Same Physician on the Same Day of the Procedure or Other Service 59Distinct Procedural Service - Modifier
25is used when an E/M service is provided on the same day as another procedure, and the E/M is significant and separately identifiable. - Modifier
59is used to indicate a distinct procedural service that is not normally reported together with the primary procedure.
- Modifier
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Provider Taxonomies:
Taxonomy Code Specialty 207Q00000XFamily Medicine Physician 207RG0300XGeriatric Medicine Physician 207R00000XInternal Medicine Physician - These taxonomies represent the specialties commonly providing subsequent nursing facility care under CPT code
99309.
- These taxonomies represent the specialties commonly providing subsequent nursing facility care under CPT code
Related Diagnoses
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Z00.00: Encounter for general adult medical examination without abnormal findings- Used when the patient is seen for a routine examination and no abnormalities are found. Relevant for routine subsequent care in a nursing facility.
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Z00.01: Encounter for general adult medical examination with abnormal findings- Used when the patient is seen for a routine examination and abnormal findings are identified. Applicable when new issues are discovered during the visit.
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I10: Essential (primary) hypertension- Common chronic condition managed in nursing facility residents. Relevant for ongoing assessment and management during subsequent care visits.
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E11.9: Type 2 diabetes mellitus without complications- Represents management of diabetes in patients without complications. Often addressed during subsequent nursing facility care.
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M81.0: Age-related osteoporosis without current pathological fracture- Indicates osteoporosis management in elderly patients. Relevant for monitoring and preventive care during subsequent visits.
Related CPT Codes
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99308: Subsequent nursing facility care, per day, for the evaluation and management of a patient, which requires at least two of these three key components: a detailed interval history; a detailed examination; medical decision making of low complexity.- Used for less complex follow-up visits in the nursing facility. Often an alternative to
99309when the medical decision making is of low complexity.
- Used for less complex follow-up visits in the nursing facility. Often an alternative to
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99310: Subsequent nursing facility care, per day, for the evaluation and management of a patient, which requires at least two of these three key components: a comprehensive interval history; a comprehensive examination; medical decision making of high complexity.- Used for more complex follow-up visits. May be used instead of
99309when the patient's condition requires high complexity medical decision making.
- Used for more complex follow-up visits. May be used instead of
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99304: Initial nursing facility care, per day, for the evaluation and management of a patient, which requires these three key components: a comprehensive history; a comprehensive examination; medical decision making of moderate complexity.- Used for the first evaluation and management visit upon admission to the nursing facility. Not used together with
99309on the same day.
- Used for the first evaluation and management visit upon admission to the nursing facility. Not used together with
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99305: Initial nursing facility care, per day, for the evaluation and management of a patient, which requires these three key components: a comprehensive history; a comprehensive examination; medical decision making of high complexity.- Used for the initial visit when the patient's condition requires high complexity medical decision making. Not used together with
99309on the same day.
- Used for the initial visit when the patient's condition requires high complexity medical decision making. Not used together with
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These codes are alternatives or used in sequence depending on whether the visit is initial or subsequent, and the complexity of medical decision making.
National Reimbursement Benchmarks
Medicare's national mean rate for CPT code 99309 is $117.69, which is slightly higher than the BUCA (average commercial) mean rate of $115.02. Among commercial payers, Cigna has the highest mean rate at $137.57, while Aetna is the lowest at $98.89.
Rate dispersion, measured by the difference between the 75th and 25th percentiles, varies significantly across payers. Medicare shows the tightest range at $9.00, indicating relatively consistent rates nationwide. In contrast, Cigna exhibits the widest dispersion at $77.50, reflecting greater variability in commercial reimbursement. Blue Cross Blue Shield and UnitedHealth Group also display broad ranges, at $53.50 and $65.00 respectively.
The table and chart below present the full breakdown of national benchmarks for CPT code 99309 by payer.
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