Convert to ICD-10-CM: 
371.23 converts approximately to:
- 2015/16 ICD-10-CM H18.13 Bullous keratopathy, bilateral
 ICD-9-CM Volume 2 Index entries containing back-references to 
371.23:
- Cyst (mucus) (retention) (serous) (simple) cornea 371.23 cornea 371.23
 
- Keratopathy 371.40  bullous (see also Keratitis) 371.23 bullous (see also Keratitis) 371.23