Crystal's MCW Coder Hub👩🏾⚕️ Place of Service for Inpatient
⚕️Overview
Place of Service (POS) codes indicate where the professional service was rendered.
❤️🩹 Inpatient POS Codes
| Code | Setting | Description |
|---|---|---|
| -21 | Inpatient Hospital | Patient admitted to hospital |
| -22 | Outpatient Hospital | Hospital clinic/ED |
| -23 | Emergency Room | Hospital ER |
| -24 | ASC | Ambulatory Surgical Center |
| -31 | SNF Part A | Skilled Nursing (inpatient) |
| -32 | SNF Part B | Skilled Nursing (outpatient) |
| -41 | Ambulance | Ground or air |
| -42 | Independent Lab | Laboratory services |
| -51 | Psych Hospital | Inpatient psychiatric |
| -61 | IRF | Inpatient Rehabilitation Facility |
😷Impact on Reimbursement
- POS 21: Standard inpatient rates
- POS 22: Outpatient hospital rates (often lower)
- Facility vs. Non-Facility: Affects RVU calculation
POS Accuracy
Incorrect POS codes can lead to:
- Claim denials
- Over/under payment
- Audit triggers
- Compliance violations
🩻Common Scenarios
Observation vs. Inpatient
2023 E/M Changes