2008 ICD-9-CM Volume 1 Diagnosis Codes Home > Diseases Of The Nervous System And Sense Organs 320-389 > Disorders Of The Eye And Adnexa 360-379 > Corneal Opacity And Other Disorders Of Cornea 371.* > 2008 ICD-9-CM Diagnosis 371.20 Corneal edema unspecified  On October 1, 2008 the 2009 ICD-9-CM codes came into effect. Therefore, this code may be out of date. The 2009 version of ICD-9-CM 371.20 can be accessed here. An excessive amount of fluid in the cornea due to damage of the epithelium or endothelium causing decreased visual acuity. 371.20 is a specific code that can be used to specify a diagnosis 371.20 contains 2 index entries View the ICD-9-CM Volume 1 371.* hierarchy ICD9Data's sister site ProcedureCodes.com launches with the 2008/09 CPT® codes - read more on the ICD9Data.com blog. Index entries containing 371.20: Edema, edematous 782.3 cornea 371.20 due to contact lenses 371.24 idiopathic 371.21 secondary 371.22 Infiltrate, infiltration corneal (see also Edema, cornea) 371.20