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This variable is contained in the following files:
SAS Name
PRVDR_BASE_FAC_CCN_NUM
This variable is the CMS Certification Number (CCN).
It is the CCN of the parent provider for IPPS hospitals, Critical Access Hospitals, and IPPS-Excluded hospitals with IPPS-excluded rehabilitation or psychiatric units or swing beds (as applicable). It is null/missing for all other provider types.
The first two digits indicate the state where the provider is located, using the SSA state codes; the middle two characters indicate the type of provider; and the last two digits are used as a counter for the number of providers within that state and type of provider (i.e., this is a unique but not necessarily sequential number).
This field was new in 2021. Prior to 2021, the CCN was populated in the PRVDR_NUM field. For 2021+ a subset of provider types also has a populated value for PRVDR_BASE_FAC_CCN_NUM.
This field is populated from the provider number (the CCN), from the first claim record included in the stay, modified as follows.
If position 3 of the provider number is one of the alpha characters on the list below, and position 4 is numeric, then populate position 3 of this field with the following numeric values:
Psych/Rehab Unit or Swing Bed Unit in a CAH: If “M”, “R” or “Z”, populate “1”
Psych/Rehab Unit or Swing Bed in a IPPS Hospital: If “S”, “T” or “U”, populate “0”
Swing Bed in LTCH: If “W”, populate “2”
Swing Bed in a Rehab Facility: If “Y”, populate “3”
If positions 3 and 4 of the provider number are both alpha characters, shown on the list below, then populate positions 3 and 4 of this field with the following numeric values:
Rehab/Psych Unit of LTCH: If “TA” or “SA”, populate “20”. If “TB” or “SB”, populate “21”. If “TC” or “SC”, populate “22”.
Psych Unit of Rehab Facility: If “SD”, populate, “30”
Rehab/Psych Unit of Hospital: If “TE” or “SE”, populate “33”
Rehab Unit of Psych Facility: If “TF” populate, “40”. If “TG” populate, “41”. If “TH” populate, “42”. If “TJ” populate, “43”. If “TK” populate, “44”.
For all else blank will be mapped in positions 1–6 of this field.
Source: NCH