ICD-10-CM > Z00-Z99 > Z40-Z53 > Z49 Z49 Encounter for care involving renal dialysis Non-Billable/Non-Specific Code Also associated end stage renal disease (N18.6) Codes Z49.0Preparatory care for renal dialysisZ49.01Encounter for fitting and adjustment of extracorporeal dialysis catheterZ49.02Encounter for fitting and adjustment of peritoneal dialysis catheterZ49.3Encounter for adequacy testing for dialysisZ49.31Encounter for adequacy testing for hemodialysisZ49.32Encounter for adequacy testing for peritoneal dialysis