Medicare Data Utilities Appendices

Appendix K NCH Patch Table
The following claim-level variables reference this Appendix:
ptchcd1 NCH patch code 1
01 = RRB Category Equatable BIC - changed (all claim types) - applied
during the Nearline 'G' conversion to claims with NCH weekly
process date before 3/91. Prior to Version 'H', patch indicator
stored in redefined Claim Edit Group, 3rd occurrence, position 2.
02 = Claim Transaction Code made consistent with NCH payment/edit RIC
code (OP and HHA) -- effective 3/94, CWFMQA began patch. During
'H' conversion, patch applied to claims with NCH weekly process
date prior to 3/94. Prior to version 'H', patch indicator stored
in redefined Claim Edit Group, 4th occurrence, position 1.
03 = Garbage/nonnumeric Claim Total Charge Amount set to zeroes
(Instnl) -- during the Version 'G' conversion, error occurred in
the derivation of this field where the claim was missing revenue
center code = '0001'. In 1994, patch was applied to the OP and
HHA SAFs only. (This SAF patch indicator was stored in the
redefined Claim Edit Group, 4th occurrence, position 2). During
the 'H' ocnversion, patch applied to Nearline claims where garbage
or nonnumeric values.
04 = Incorrect bene residence SSA standard county code '999' changed
(all claim types) -- applied during the Nearline 'G' conversion
and ongoing through 4/21/94, calling EQSTZIP routine to claims
with NCH weekly process date prior to 4/22/94. Prior to Version
'H' patch indicator stored in redefined Claim Edit Group, 3rd
occurrence, position 4.
05 = Wrong century bene birth date corrected (all claim types) -
applied during Nearline 'H' conversion to all history where
century greater than 1700 and less than 1850; if century less than
1700, zeroes moved.
06 = Inconsistent CWF bene medicare status code made consistent with
age (all claim types) -- applied during Nearline 'H' conversion to
all history and patched ongoing. Bene age is calculated to
determine the correct value; if greater than 64, 1st position
MSC ='1'; if less than 65, 1st position MSC = '2'.
07 = Missing CWF bene mediare status code derived (all claim types) -
applied during Nearline 'H' conversion to all history and patched
ongoing, except claims with unknown DOB and/or Claim From Date='0'
(left blank). Bene age is calculated to determine missing value;
if greater than 64, MSC='10'; if less than 65, MSC = '20'.
08 = Invalid NCH primary payer code set to blanks (Instnl) -- applied
during Version 'H' conversion to claims with NCH weekly process
date 10/1/93-10/30/95, where MSP values = invalid '0', '1', '2',
'3' or '4' (caused by erroneous logic in HCFA program code, which
was corrected on 11/1/95).
09 = Zero CWF claim accretion date replaced with NCH weekly process
date (all claim types) -- applied during Version 'H' conversion to
Instnl and DMERC claims; applied during Version 'G' conversion to
non-institutional (non-DMERC) claims. Prior to Version 'H', patch
indicator stored in redefined claim edit group, 3rd occurrence,
position 1.