99203

Office or other outpatient visit for the evaluation and management of a new patient, which requires a medically appropriate history and/or examination and moderate level of medical decision making. When time is used to report the service, 30-44 minutes of total time is spent on the date of the encounter.

CPT code 99203 represents an office or other outpatient visit for the evaluation and management of a new patient. This service requires a medically appropriate history and/or examination and a moderate level of medical decision making (MDM). Alternatively, the service may be reported based on total time spent on the date of the encounter, which must range from 30 to 44 minutes. A moderate MDM level typically involves addressing one or more chronic illnesses with exacerbation, progression, or side effects of treatment; two or more undiagnosed new problems with uncertain prognosis; or acute illness with systemic symptoms. It also requires reviewing and analyzing a moderate amount and/or complexity of data (e.g., independent interpretation of tests, review of prior external medical records, or ordering of extensive diagnostic tests). The risk of complications, morbidity, or mortality of patient management at this level is moderate, potentially including prescription drug management, a decision regarding minor surgery with identified risk factors, or decision regarding elective major surgery without identified risk factors.

Clinical Indications

  • Initial evaluation of a new complex symptom or set of symptoms requiring significant diagnostic workup (e.g., new onset of severe, persistent headache; unexplained weight loss; persistent abdominal pain of unknown etiology).
  • First-time assessment of a chronic condition with recent exacerbation, progression, or poorly controlled symptoms (e.g., newly diagnosed Type 2 Diabetes Mellitus requiring comprehensive management plan, uncontrolled hypertension, asthma exacerbation requiring new treatment strategy).
  • Evaluation of an undiagnosed new problem with uncertain prognosis that necessitates extensive data review or complex decision-making.
  • New patient presenting with acute illness involving systemic symptoms, requiring detailed assessment, diagnostic testing, and management decisions (e.g., acute pyelonephritis, community-acquired pneumonia).
  • Establishing care for a patient with multiple chronic conditions that require a comprehensive initial management strategy and significant care coordination.

Procedure Steps

  1. Patient intake, including registration, chief complaint documentation, and collection of relevant demographic and insurance information.
  2. Performance of a medically appropriate history, which may include history of present illness (HPI), review of systems (ROS), past medical history (PMH), family history (FH), and social history (SH).
  3. Execution of a medically appropriate physical examination focusing on relevant organ systems to the chief complaint and associated conditions.
  4. Medical Decision Making (MDM) process: This includes assessing the number and complexity of problems addressed (e.g., two new problems with uncertain prognosis, one chronic illness with exacerbation); reviewing and analyzing data (e.g., interpreting diagnostic test results, reviewing external records); and evaluating the risk of complications, morbidity, or mortality (e.g., decision for prescription drug management, minor surgery with identified risk factors).
  5. Development of a comprehensive diagnosis and treatment plan, which may include ordering further diagnostic tests, prescribing medications, initiating therapies, and referring to specialists.
  6. Patient counseling regarding the diagnosis, prognosis, treatment options, potential risks and benefits, and patient education.
  7. Thorough documentation of all aspects of the encounter, including history, examination findings, assessment, plan, and the elements supporting the moderate MDM level or total time spent.

Coding Guidelines

  • A 'new patient' is defined as one who has not received any professional services from the physician or another physician or qualified healthcare professional of the exact same specialty and subspecialty who belongs to the same group practice, within the past three years.
  • The level of service for 99203 is determined by either the Medical Decision Making (MDM) or the total time spent on the date of the encounter, as per AMA E/M guidelines. History and examination are required to be medically appropriate but do not alone determine the code level.
  • To qualify for 99203 based on MDM, the encounter must meet the requirements for a moderate level of MDM, which involves satisfying at least two of the three MDM elements: (1) number and complexity of problems addressed, (2) amount and/or complexity of data to be reviewed and analyzed, and (3) risk of complications and/or morbidity or mortality of patient management.
  • If time is used for reporting, the total time spent on the date of the encounter must be 30-44 minutes. This total time includes both face-to-face and non-face-to-face time personally spent by the physician or qualified healthcare professional (QHP) on the day of the encounter (e.g., preparing to see the patient, obtaining and/or reviewing history, performing a medically appropriate examination and/or evaluation, counseling and educating the patient/family, ordering medications, tests, or procedures, referring and arranging for other services, documenting in the health record, independently interpreting results not separately reported, communicating with other healthcare professionals).
  • Comprehensive documentation is essential to support the chosen level of service, whether based on MDM or time. This documentation should clearly reflect the complexity of the problems, the data reviewed, the risks involved, or the total time spent.
  • This code should not be reported with other E/M services for the same patient on the same date by the same physician or QHP, unless the services are distinctly different and supported by Modifier 25.

Associated ICD-10 Codes