ICD-10-CM 2027
ICD-10 code for cystostomy attention
From the official ICD-10-CM alphabetic index entry “Attention (to) › cystostomy”. Page updated September 29, 2026.
About coding cystostomy attention
The ICD-10-CM code for cystostomy attention is Z43.5 (Encounter for attention to cystostomy).
Within Z43 (encounter for attention to artificial openings), Z43.5 is specifically for encounter for attention to cystostomy. Related codes cover tracheostomy (Z43.0), gastrostomy (Z43.1), ileostomy (Z43.2), colostomy (Z43.3), other artificial openings of digestive tract (Z43.4), other artificial openings of urinary tract (Z43.6), artificial vagina (Z43.7), other artificial openings (Z43.8) and 1 more.
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 698 (Other Kidney and Urinary Tract Diagnoses with MCC, relative weight 1.6398), DRG 699 (Other Kidney and Urinary Tract Diagnoses with CC, relative weight 1.0003) and DRG 700 (Other Kidney and Urinary Tract Diagnoses without CC/MCC, relative weight 0.6741), in MDC 11 (Diseases and Disorders of the Kidney and Urinary Tract), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about cystostomy attention ICD-10 codes
What is the ICD-10 code for cystostomy attention?
- Z43.5 — Encounter for attention to cystostomy.
Is Z43.5 billable?
- Yes. Z43.5 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z43.5 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict Z43.5 as a principal diagnosis.
Is Z43.5 a CC or MCC?
- No. Z43.5 is neither a CC nor an MCC under MS-DRG v44.0.