Clinical Context
A hospital arranges on-call coverage for surgical and medical services and contracts with a physician to be available for immediate consultation or to perform procedures as needed. For example, a general surgeon signs an agreement to provide on-site availability for emergency laparotomies and consultations between 7:00 PM and 8:00 PM while the hospital is short-staffed. During that hour the surgeon remains reachable and able to present to the facility within the agreed response time. If the physician provides this one-hour period of availability in fulfillment of the facility agreement, the service is documented and billed as 99026 for the hour of on-call availability. Typical workflow: the physician documents the date, start and end time of the on-call hour, the contractual basis for coverage, the facility served, and any immediate clinical actions taken (consultation, evaluation, or procedure) during or immediately following the on-call interval.
Coding Specifications
| Modifier | Description | When to Use |
|---|
00 | No modifier — standard service | Used when no specific modifier applies to the on-call hour |
22 | Increased procedural services | Rarely applicable; used if the on-call period required substantially greater effort beyond usual availability terms
26 | Professional component | Not typically applicable to 99026; used if only professional portion of a composite service is reported in conjunction with other services
52 | Reduced services | Use when the on-call period was shortened or limited relative to the agreed-upon hour
53 | Discontinued procedure | Use if the on-call period was started but discontinued due to patient or facility factors
54 | Surgical care only | Use when another surgeon provides pre/postoperative care and the on-call physician provides only the intraoperative or immediate availability
55 | Postoperative management only | Use if the billed on-call availability covers only postoperative responsibilities per agreement
56 | Preoperative management only | Use if the on-call availability pertains only to preoperative responsibilities per the facility agreement
66 | Surgical team exception | Use when the physician is part of a designated surgical team and billing reflects team coverage responsibilities
73 | Discontinued outpatient procedure prior to anesthesia | Use if the on-call coverage was for an outpatient procedure that was cancelled before anesthesia and billing needs to reflect discontinued status
78 | Unplanned return to the operating room by the same physician following initial procedure | Use when the on-call availability directly results in an unplanned re-operation by the same surgeon within the global period
| Taxonomy Code | Specialty | Notes |
|---|
207R00000X | General Surgery | Commonly provides on-call hospital surgical coverage |
207L00000X | Emergency Medicine | Provides on-site emergency coverage and consults
208000000X | Family Medicine | May provide hospitalist or on-call coverage under agreements
207P00000X | Obstetrics & Gynecology | Provides on-call surgical and delivery coverage for labor and delivery units
208100000X | Internal Medicine | Hospitalist coverage and consultative on-call services
Related Diagnoses
| ICD-10 Code | Description | Clinical Relevance |
|---|
Z75.3 | Unavailable health-care professional | Relevant when facility requires contracted on-call coverage to address provider shortages |
Z51.89 | Encounter for other specified aftercare | Relevant when on-call availability is part of ongoing perioperative or post-procedural coverage
R68.89 | Other general symptoms and signs | May be present in patients requiring urgent evaluation while physician is on-call
Z96.89 | Presence of other functional implants | Patients with implants may present emergently and trigger on-call surgeon activation
R07.9 | Chest pain, unspecified | Common emergent presentation that may prompt on-call physician response
K92.2 | Gastrointestinal hemorrhage, unspecified | Example of an urgent condition requiring on-call surgical or GI coverage
N17.9 | Acute kidney failure, unspecified | Medical emergencies occurring during on-call periods that may necessitate consultant or procedural response
Related CPT Codes
| CPT Code | Description | Relationship to This Procedure |
|---|
99221 | Initial hospital care, per day, for the evaluation and management of a patient, typically 30 minutes at bedside | May be billed when the on-call physician evaluates and admits a patient during or immediately after the on-call hour |
99238 | Hospital discharge day management | May be billed by the on-call physician if they conduct discharge services following inpatient care they covered while on-call
99356 | Prolonged physician service in the inpatient setting, each additional 30 minutes | May be billed when the on-call coverage requires prolonged direct patient care beyond standard evaluation timeframes (verify payer rules)
99050 | Services provided in the hospital during evening, night, weekend, or holiday when these are not reported as part of the basic service | May be billed in conjunction with 99026 when additional non-face-to-face services or administrative duties occur during off-hours
99024 | Postoperative follow-up visit global period, related to a previous procedure | May be billed if follow-up care related to a procedure occurs during the on-call coverage and is reportable outside the global period