-
N91.0
Primary amenorrhea
Billable
Notes
-
N91.1
Secondary amenorrhea
Billable
Notes
-
N91.2
Amenorrhea, unspecified
Billable
Notes
-
N91.3
Primary oligomenorrhea
Billable
Notes
-
N91.4
Secondary oligomenorrhea
Billable
Notes
-
N91.5
Oligomenorrhea, unspecified
Billable
Notes