Table 1 Categories for ICD-9 GDM Discharge Diagnoses
From: Patterns of gestational diabetes diagnosis inside and outside of clinical guidelines
Category | Criteria |
|---|---|
Diagnosed by guidelines | 3-h OGTT with ≥2 abnormal values based on Carpenter-Coustan criteria |
Diagnosed outside of guidelines | Clinician treated pregnancy as GDM due to one or more of the following: |
-GLT ≥ 200 mg/dL (11.1 mmol/L) | |
-History of GDM or IFG or IGT | |
-1 abnormal value on OGTT | |
-Elevated fingersticks | |
-Inability to tolerate GLT or OGTT | |
-Elevated lab value (HbA1c, fasting or random blood glucose) | |
Clinician error | -Clinician misread OGTT results |
-Type 2 DM called GDM | |
Coding error | ICD-9 code assigned and no mention of GDM diagnosis or treatment in prenatal care notes, delivery admission, anesthesia record, or discharge summary |
OR 3 h OGTT ≥2 abnormal values with GDM diagnosis in chart and no ICD-9 code assigned | |
No laboratory values available | Transferred to BWH with GDM diagnosis and no laboratory values or provider mentioned test done but no values available |