Tip: The majority of your new options specify trimester.
No longer should you look to 646.83 (Other specified antepartum complications) as a catch-all code to use when a patient comes in with a symptom complicating her pregnancy. Now you have a variety of more specific options from which to choose:
Documentation tips: Notice how these conditions range from low weight to herpes to exhaustion and fatigue. Check your physician’s notes for the specific complication and trimester (which is usually already stated).
Coding tips: Don’t be confused by O99.89 (Other specified diseases and conditions complicating pregnancy, childbirth and the puerperium). This code was one of 648.93 (Other current conditions classifiable elsewhere of mother antepartum)’s equivalents. You would use this code for conditions she has developed while pregnant or had before her pregnancy that don’t have a specific code. The codes listed above pertain to conditions related to pregnancy. In other words, she would not have them were she not pregnant.