Is CPT 99223 a consult code?

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No, CPT code 99223 is officially an initial hospital inpatient or observation care code, not a dedicated consultation code, but it is used as a substitute for inpatient consults under Medicare and certain other payers.

Understanding CPT 99223

  • Official Definition: Initial hospital inpatient or observation care, per day, for a new or established patient requiring high-complexity medical decision-making or at least 75 minutes of total time on the date of the encounter.
  • Role in Billing: It sits at the highest-complexity tier of initial hospital care (99221–99223).

How it Relates to Consultations

  • Medicare and CMS Rules: Medicare stopped accepting inpatient consultation codes (99252–99255). Under Medicare guidelines, consulting physicians performing an initial hospital evaluation must report codes 99221–99223 instead.
  • Commercial Payers: Many private or commercial insurance companies still recognize and require traditional inpatient consultation codes (99252–99255) rather than initial hospital care codes. Always check specific payer guidelines.

Is 99223 an inpatient or outpatient code?

CPT code 99223 is used for initial hospital inpatient or observation care.

When to Use Code 99223

  • Setting: It covers both formal inpatient admissions (Place of Service 21) and outpatient observation status (Place of Service 22).
  • Level of Care: It represents the highest-complexity initial encounter in the hospital care series.
  • Requirements: It requires high-complexity medical decision-making (MDM) or a minimum of 75 total minutes spent on the date of the encounter.

According to guidelines from the American Medical Association CPT, separate observation-only codes were eliminated, meaning both inpatient and initial observation visits use the same 99221-99223 code family depending on the location status and time or decision-making level.

What CPT codes are used for consults?

Outpatient and inpatient medical consultation services are reported using the CPT® Code Range 99242–99255 set maintained by the American Medical Association.

Outpatient Consultation Codes (Office/Outpatient/ED/Home)

  • 99242: Low-to-moderate level, based on time or medical decision making (MDM)
  • 99243: Moderate level decision making / time thresholds
  • 99244: Moderate-to-high level decision making / time thresholds
  • 99245: High level decision making / time thresholds (prolonged service code +99417 applies after 70 minutes)

Inpatient or Observation Consultation Codes

  • 99252: Straightforward/low level MDM
  • 99253: Low level MDM, 45 minutes
  • 99254: Moderate level MDM, 60 minutes
  • 99255: High level MDM, 80 minutes (prolonged service code +99418 applies after 95+ minutes)

Interprofessional Consultation Codes (Patient Not Present)

  • 99446–99449: Telephone/internet/EHR peer-to-peer consultation by a consulting physician (5 to 31+ minutes with a written report)
  • 99451: Written report only from a consultant (≥5 minutes)

Important Billing Rules

  • Medicare Policy: Medicare and many Medicare Advantage plans do not accept or reimburse traditional consultation codes. For Medicare, providers must bill regular office/outpatient E/M codes or initial hospital care codes (99221–99223) instead.
  • Core Requirements: To use a consultation code, documentation must show the 3 R's: a formal Request from an external provider, Rendered evaluation/opinion, and a written Report sent back to the requesting professional.

What is the difference between 99233 and 99223?

The primary difference is that 99223 is used for an initial hospital inpatient or observation care visit, while 99233 is used for a subsequent (follow-up) hospital care visit.

Both codes represent high-complexity care, but they apply to different stages of a patient's hospital stay.

Key Differences at a Glance

  • Phase of Care:
    • 99223 is for the first encounter when a patient is formally admitted or placed in observation status.
    • 99233 is for subsequent daily hospital rounds or progress visits from the second day onward.
  • Time Requirements:
    • 99223 requires a total time of 75 minutes on the date of the encounter (if coding by time).
    • 99233 requires a total time of 50 minutes on the date of the encounter (if coding by time).
  • Medical Decision Making (MDM):
  • Billing Frequency:
    • Both are per-diem codes and can generally only be billed once per day per patient by a physician (or group of the same specialty).

What is the CPT code for an inpatient consult?

The CPT codes for an initial inpatient or observation consultation are 99252, 99253, 99254, and 99255, depending on the level of medical decision making (MDM) or total time spent.

Inpatient Consultation CPT Codes & Levels

  • 99252: Straightforward MDM or 35 minutes total time
  • 99253: Low complexity MDM or 45 minutes total time
  • 99254: Moderate complexity MDM or 60 minutes total time
  • 99255: High complexity MDM or 80 minutes total time

Important Insurance and Payer Rules

  • Medicare: Medicare and many other payers do not accept or pay for consultation codes (99252–99255). For Medicare patients, you must instead report initial hospital care codes (99221–99223) for the initial visit and subsequent care codes (99231–99233) for follow-ups.
  • Commercial Payers: Check individual commercial insurance guidelines, as some non-Medicare payers still recognize and require standard inpatient consultation codes.
  • Follow-up Visits: After the initial consultation code is used, any subsequent follow-up visits during the same admission are billed using subsequent hospital care codes (99231–99233), not another consult code.

HOSPITALIST CODING: Evaluation and Management LEVEL 3 99233-99223 - E&M 2023

9 related questions found

Can 99223 and 99232 same day?

No, you cannot bill an initial hospital care code (99223) and a subsequent hospital care code (99232) for the same patient on the same calendar day by the same physician or group of the same specialty.

Key Billing Rules

  • Per Diem Policy: Both initial (99221–99223) and subsequent (99231–99233) hospital visits are per diem (daily) services that can only be reported once per calendar day.
  • Same-Day Restrictions: According to UnitedHealthcare Reimbursement Policies and CMS guidelines, you cannot report an initial per diem service and a subsequent per diem service together on the same date of service.
  • Admission Day Rule: The day a patient is admitted, the admitting physician should report only the initial hospital care code (such as 99223) to cover all services provided on that calendar day, regardless of how many times the patient is seen. Subsequent codes like 99232 are reserved for care on days after admission.

Is CPT 99223 covered by Medicare?

Yes, CPT code 99223 is covered by Medicare when medically necessary for initial hospital inpatient or observation care.

Service Overview

  • Definition: Initial hospital inpatient or observation care for a patient with high-complexity medical decision-making or 75+ minutes of total physician/qualified healthcare professional time on the date of the encounter.
  • Setting: Applicable to hospital inpatient (Place of Service 21) or outpatient observation (Place of Service 22).
  • Billing Limits: Generally limited to one unit per patient, per day, per physician (or same specialty/group).
  • Reimbursement: Nationally valued at roughly $156 before geographic adjustments under the Centers for Medicare & Medicaid Services Physician Fee Schedule.

What are the CPT codes for inpatient consults in 2026?

The CPT codes for an inpatient or observation consultation in 2026 are 99252, 99253, 99254, and 99255.

2026 Inpatient Consultation CPT Codes

You choose the correct code level based on either Medical Decision Making (MDM) or the total time spent on the date of the encounter.

  • 99252: Straightforward or low MDM, or at least 35 minutes of total time.
  • 99253: Moderate MDM, or at least 50 minutes of total time.
  • 99254: Moderate-to-high MDM, or at least 75 minutes of total time.
  • 99255: High MDM, or at least 110 minutes of total time.

Important Billing and Payer Rules

  • Traditional Medicare Policy: Medicare has not recognized or reimbursed consultation codes (99252–99255) since 2010. For Medicare patients, consultants must instead bill standard Initial Hospital Care codes (99221–99223) for the first visit of the stay, and Subsequent Hospital Care codes (99231–99233) for follow-up visits.
  • Commercial and Medicaid Payers: Many private or managed care insurance plans still accept the official consultation code range (99252–99255), but you must verify coverage guidelines with each specific payer.

What is the difference between 99223 and 99255?

CPT code 99223 and CPT code 99255 both represent high-complexity inpatient or observation care, but they differ based on the type of service (initial admission vs. consultation) and payer rules.

Key Differences

  • 99223 (Initial Hospital Inpatient or Observation Care):
    • Used for the admitting or principal physician of record conducting the initial comprehensive hospital care.
    • Requires high-complexity Medical Decision Making (MDM) or 75 total minutes on the date of the encounter.
    • Accepted by all payers, including Medicare and commercial insurance.
  • 99255 (Inpatient or Observation Consultation):
    • Used by a consulting physician when requested by another provider to evaluate a specific condition.
    • Requires high-complexity MDM or 80 total minutes on the date of the encounter.
    • Not accepted by Medicare or Medicare Advantage, which require consulting physicians to bill initial hospital care codes like 99223 instead. Commercial insurance may still accept it.

When did Medicare stop accepting consult codes?

Medicare stopped accepting and paying for CPT consultation codes (outpatient 99241–99245 and inpatient 99251–99255) on January 1, 2010.

Key Details of the Policy Change

  • Effective Date: January 1, 2010.
  • Reason: The Centers for Medicare & Medicaid Services (CMS) eliminated them due to frequent misuse and confusion regarding what qualified as a consultation versus a transfer of care.
  • Replacements Required:
    • For office and outpatient visits, providers must use standard office/outpatient evaluation and management (E/M) codes (such as new or established patient codes 99202–99215).
    • For inpatient or nursing facility settings, providers must use initial care codes (such as 99221–99223) instead of inpatient consult codes.
  • CPT vs. Medicare Status: Although Medicare stopped recognizing these codes for payment, they remained in the American Medical Association (AMA) CPT manual for many years (though lower-level codes like 99241 and 99251 were eventually deleted by the AMA in 2023).