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Thread: Observation

  1. #1

    Default Observation

    AAPC: Back to School
    A patient is admitted to observation and then changed to in patient on day three. Can I bill for the obs admission and one subsequent day and then the admission to inpatient or do I have to forget about the obs days and only charge in patient days?

  2. #2
    Join Date
    Apr 2007
    Kansas City, MO


    Here is what Medicare says:

    Question 4: Please help me to better understand outpatient observation to acute inpatient. If the patient is admitted to observation status on Monday, admitted to an inpatient history on Tuesday, and then discharged from inpatient status on Wednesday. How would we bill these services?
    Answer: The admission of a patient in observation status is procedure codes 99218 - 99220. The admission of the patient to inpatient status on Tuesday is procedure codes 99221 - 99223. The discharge on Wednesday is procedure codes 99238 - 99239. The code chosen is based on where the service is provided and the level of care provided. You can find more information on observation services in the CMS IOM Publication 100-04, Chapter 12, Section 30.6.8.D.

    Linda Vargas, CPC, CPCO, CPMA, CPC-I, CEMC
    PMCC Licensed Instructor
    Kansas City, MO Chapter
    Member Development Officer 2016
    Harrisonville, MO Chapter President - 2013
    ICD-10 Education Coordinator- 2012
    Chapter President - 2011
    President Elect - 2010

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