This will find the code that should be paired with the supplied
manifestation code.
There are slightly different pairing criteria between standard
manifestation codes (inclusionary codes) and gangrene codes
(exclusionary) codes.
For Inclusional Manifestation/Etiology pairing (normal) (Optional V-codes
followed by x3/x4 has no logic change whatsoever)
If you come across a Manifestation code:
- go up (column 1 only)
and check for the closest matching Etiology code (you can go up all the
way to row 1 if necessary)
- if you find a matching code, Man/Eti
can score (using contention).
- if you do not find a matching
code, Man does not score
For Exclusional Manifestation/Etiology pairing (Gangrene) (Optional
V-codes followed by x3/x4 has no logic change whatsoever)
If you come across a Gangrene code:
- go up (column 1 only) until
you find the closest non-Manifestation code
- if you find a
non-Man code,
- ) if code is a V-code or E-code, Gangrene does not
score (anti-pair)
- ) if code is on gangrene exclusion list, Gangrene
does not score (anti-pair)
- ) if code is not on exclusion pair,
Gangrene can score (using contention)
- if you do not find a
non-Man code (i.e. run out), Gangrene does not score