2006 ICD-9-CM Volume 1 Diagnosis Codes Home > Supplementary Classification Of Factors Influencing Health Status And Contact With Health Services V01-V85 > Persons Encountering Health Services For Specific Procedures And Aftercare V50-V59 > Encounter For Dialysis And Dialysis Catheter Care V56.* > 2006 ICD-9-CM Diagnosis V56.31 Encounter for adequacy testing for hemodialysis View the most recent version of ICD-9-CM V56.31 V56.31 is a specific code that can be used to specify a diagnosis V56.31 contains 2 index entries View the ICD-9-CM Volume 1 V56.* hierarchy  Index entries containing V56.31: Admission (encounter) for adequacy testing (for) hemodialysis V56.31 Test(s) adequacy hemodialysis V56.31