For Medicare payment, which codes are used for inpatient/observation services?

For Medicare payment, which codes are used for inpatient/observation services?

• A. 99221-99223, 99231-99233
• B. 99202-99215
• C. 99304-99310
• D. 99281-99285

Answer: (A)

Medicare payment for hospital care uses specific hospital E/M codes that reflect the patient’s status and the level of care during a stay. For inpatient hospital services, the correct coding is an initial hospital care level (99221, 99222, 99223) for the admission and the subsequent hospital care levels (99231, 99232, 99233) for the ongoing days of the stay. These code groups are what Medicare uses to reimburse inpatient encounters under the IPPS. If the patient is in observation status, separate observation codes apply (99218-99220 for initial observation and 99224-99226 for subsequent observation), which is why the inpatient ranges shown are the best match for inpatient/observation scenarios in many exam contexts. The other options correspond to outpatient office visits, domiciliary/home visits, or emergency department visits, not inpatient/observation hospital billing.

Medicare payment for hospital care uses specific hospital E/M codes that reflect the patient’s status and the level of care during a stay. For inpatient hospital services, the correct coding is an initial hospital care level (99221, 99222, 99223) for the admission and the subsequent hospital care levels (99231, 99232, 99233) for the ongoing days of the stay. These code groups are what Medicare uses to reimburse inpatient encounters under the IPPS. If the patient is in observation status, separate observation codes apply (99218-99220 for initial observation and 99224-99226 for subsequent observation), which is why the inpatient ranges shown are the best match for inpatient/observation scenarios in many exam contexts. The other options correspond to outpatient office visits, domiciliary/home visits, or emergency department visits, not inpatient/observation hospital billing.