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CPT 99238 explained: Master hospital discharge billing with our 2026 guide covering documentation, time rules, 99239 comparisons, denial prevention, and a practical billing checklist for hospitalist teams.

Same-day admission and discharge isn't a one-size-fits-all code and 99235 is the tier that gets the most second-guessing. This guide breaks down what actually separates 99235 from 99234 and 99236, how MDM and time-based selection work, the documentation that holds up, and where these claims tend to run into trouble.

A patient gets admitted and discharged on the same calendar day, and the claim doesn't automatically know that. This guide breaks down CPT 99234 the 8-to-24-hour rule, the two-encounter requirement, MDM vs. time-based selection, how it compares to 99235 and 99236, and where these claims most often run into denials.

A patient stays in the hospital for days, and every one of those days needs its own subsequent care code — but not every day looks the same on paper. This guide breaks down CPT 99232, how it compares to 99231 and 99233, MDM and time-based reporting, common billing mistakes, and a pre-submission checklist for hospital billing teams.

Not every hospital admission calls for the same level of first-day billing code and CPT 99222 sits right in the middle of that decision. This guide breaks down what 99222 actually represents, how it compares to 99221 and 99223, documentation and MDM considerations, common billing mistakes, and a pre-submission checklist for hospital billing teams.