Hospital or Ambulatory Surgical Center Call Template

Hospital/ambulatory surgical center call.

Date: Date
Time: Time
Facility: Facility
Unit/Floor: Unit/Floor
Reason for consult: Reason for consult

RMH: Medical history reviewed/updates
Admitting diagnosis: Admitting diagnosis
Current medical status: Current medical status
NPO status: NPO status

Consultation Requested By: Consultation Requested By
Requesting provider: Requesting provider
Service: Service
Urgency: Urgency

CC/Consultation Question: CC/Consultation Question

Clinical Examination:
Patient position: Patient position
Cooperation: Cooperation
Extraoral: Extraoral findings
Intraoral: Intraoral findings

Radiographic Review:
Images reviewed: Images reviewed
Findings: Findings

Dx: Diagnosis

Recommendations: Recommendations

Treatment Rendered:

Communication:
Discussed with requesting provider.
Documented in hospital chart.
Family/patient informed.

Follow-Up Plan:
Inpatient follow-up: Inpatient follow-up
Outpatient follow-up after discharge.

Hospital Documentation: Hospital Documentation
Consultation note entered in EMR.
Verbal orders given: Verbal orders given

Complications: None or describe.
Patient tolerance: Tolerance/response.

Documentation requirements

D9420 documentation typically lives in both the dental chart and the hospital EMR. Auditors and medical cross-coders look for site-of-service evidence and a clean linkage between the OR/inpatient visit and the procedures billed alongside it.

• Date, time, and facility — name of hospital or ASC, unit/floor or OR suite, in/out times. The site of service is the load-bearing element of D9420; without it the code does not stand.
• Reason for the encounter — consultation, scheduled OR case, bedside evaluation, post-op follow-up. Tie this to the admitting diagnosis and chief complaint.
• Medical history and current status — admitting diagnosis, current medical status, ASA classification, relevant labs/imaging, NPO status if pre-anesthesia, isolation precautions if applicable.
• Consultation source — for inpatient consults, name and service of the requesting provider, urgency level, and the consultation question. This is what justifies a "consult" classification on the medical side.
• Clinical examination findings — patient position, cooperation, extraoral and intraoral findings. For sedated/intubated patients note position and any limitations on the exam.
• Radiographic review — images obtained at the facility (portable PA, panoramic, CBCT, or hospital CT) and findings. Hospital imaging is typically billed by the facility/radiology, not the dentist.
• Diagnoses — specific by tooth or area, linked to ICD-10 codes when cross-coding to medical (K02.x for caries, K04.x for pulpal/periapical disease, K05.x for gingival/periodontal disease, K12.2 for cellulitis/abscess of mouth).
• Treatment rendered — every procedure performed at the facility, by tooth and surface where applicable. Each procedure is billed under its own CDT code in addition to D9420.
• Anesthesia documentation — for OR cases, note who provided anesthesia (hospital MDA/CRNA vs the dentist), induction/emergence times, and any dentist-administered sedation increments. If the dentist personally administered the deep sedation/GA, those minutes bill under D9222/D9223 — not D9420.
• Communication — discussion with the requesting provider, hospital chart entry, family/patient briefing. For inpatient consults, the carrier expects evidence the consult was actually communicated back to the requesting service.
• Follow-up plan — inpatient follow-up if admitted, outpatient follow-up after discharge, prescriptions sent (with verbal/written orders documented).
• Complications and tolerance — even if "none," document explicitly. OR/ASC settings raise the audit bar.
• Operator and assistant identification — dentist, dental assistant if present, and the facility staff (anesthesiologist, OR nurse) involved. Hospital chart entries are co-signed and time-stamped by the EMR.

Cross-system note: many hospital EMRs do not natively store dental procedure codes. Practices that perform regular OR work usually enter a structured dental note in the EMR and mirror the relevant fields into the dental chart so the dental claim can be supported on audit.

Common denial reasons

The most frequent reasons D9420 is denied or recouped:

• Plan exclusion — the most common denial reason. Many commercial dental plans simply do not cover D9420 because they consider the OR visit a medical-side responsibility. The procedures performed at the facility are still typically payable under the dental plan; the D9420 line item is not.
• Missing site-of-service documentation — claim submitted without the facility name, NPI, or place-of-service indicator. D9420 requires evidence that care was rendered at a hospital or ASC, not at the dental office.
• No medical necessity narrative for OR-based rehabilitation — pediatric and special-needs OR cases require documentation of why in-office treatment was not feasible (age, behavioral diagnosis, extensive caries, failed prior visits, medical comorbidity). Carriers reject claims that read like "patient was uncooperative" without supporting clinical detail.
• No prior authorization where required — most Medicaid dental MCOs and many commercial plans require prior auth for OR cases. The D9420 line will deny along with the rest of the case if PA was not obtained.
• Incorrect site of service — D9420 billed for a visit that occurred in the dental office. The office is not a hospital or ASC; this is a coding error and is recoupable on audit.
• Duplicate same-day billing — D9420 billed alongside D9410 (house call) on the same DOS. The two are mutually exclusive.
• Time-of-day overlap with sedation codes — D9420 billed when the dentist did not personally provide sedation but billed D9223 anyway. The sedation code requires personal administration; if a hospital anesthesiologist provided GA, the dentist cannot also bill D9223.
• Cross-coding mismatch — when cross-coded to medical, the CPT/ICD-10 combination doesn't support a dental visit (e.g., billing 99221 inpatient admission when the dentist was a consultant, not the admitting provider). Use 99242-99245 (outpatient consult) or 99231-99233 (subsequent inpatient care) where appropriate.
• Missing requesting-provider information — for inpatient consultations, carriers expect the name and service of the requesting MD; absence reads like an unsolicited visit.

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