azoner/pyx12 — pull request #8 by sbuss (2012-10-15 19:49:54+00:00)
Title: Related entity names are situational, not required.

Related Entities to the subscriber and dependent don't require the NM1 segment.

See 004010X092-271-2120C-NM1 (p. 250) and 004010X092-271-2120D-NM1 (p.326) in the 271 spec.