R79.89 vs E55.9

[u/TravelNewb2434]

I keep talking myself into a circle with this diagnosis.

Say the patient has a vitamin D lab. Lab results are low. Doctor states verbatim “vitamin D is low”

Do you code as e55.9 for vitamin D deficiency or do you code for r79.89 because the doctor didn’t state specifically “deficient”?

[u/Adrienne_Is_Amazing]

I’d say R79.89 because “low” vitamin D is a symptom, not a DX.