2027 ICD-10-CM Diagnosis Code Z49Encounter for care involving renal dialysis

ICD-10-CM Codes›Z00–Z99›Z40-Z53›Z49

ICD-10-CM Z49
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

Z49 is a non-billable ICD-10-CM category code for encounter for care involving renal dialysis, so it cannot be submitted on claims. Use a more specific code from this category instead, such as Z49.01, Z49.02, Z49.31, and Z49.32.

Code Identity

ICD-10-CM Code
Z49
Billable Status
No — Non-Billable Category
Code Describes
Encounter for care involving renal dialysis
Short Description
Encounter for care involving renal dialysis
Same as the full description in the CMS dataset.
Chapter
Z40-Z53
Encounters for other specific health care

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ40-Z53Encounters for other specific health care
CategoryZ49Encounter for care involving renal dialysis
This CodeZ49Encounter for care involving renal dialysis

Specific Coding for Encounter for care involving renal dialysisOverview

Non-specific codes like Z49 require more characters. Use one of these billable codes instead:

  • Z49.0 for Preparatory care for renal dialysis

  • Use Z49.01 for Encounter for fitting and adjustment of extracorporeal dialysis catheter

  • Use Z49.02 for Encounter for fitting and adjustment of peritoneal dialysis catheter

  • Z49.3 for Encounter for adequacy testing for dialysis

  • Use Z49.31 for Encounter for adequacy testing for hemodialysis

  • Use Z49.32 for Encounter for adequacy testing for peritoneal dialysis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to Z49: its own notes plus those printed at block Z40-Z53 and Chapter 21. A note printed at a category, block or chapter applies to every code under it.

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Block Z40-Z53 Encounters for other specific health care applies to 164 codes
  • follow-up examination for medical surveillance after treatment (Z08-Z09)

Code Also

A second code may be needed to fully describe the condition; the note gives no sequencing direction.

  • associated end stage renal disease (N18.6)

Notes

General instructions on how these codes are used.

From Chapter 21 (Z00-Z99) Factors influencing health status and contact with health services applies to 1,425 codes
  • Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
  • (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
  • (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Patient EducationClinical

Dialysis

When your kidneys are healthy, they clean your blood. They also make hormones that keep your bones strong and your blood healthy. When your kidneys fail, you need treatment to replace the work your kidneys used to do. Unless you have a kidney transplant, you will need a treatment called dialysis.

Read the full article at MedlinePlus

Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About Z49Overview

What is the ICD-10 code for encounter for care involving renal dialysis?

Z49 is the ICD-10-CM category for encounter for care involving renal dialysis, but it is a non-billable header: claims need a more specific code from this category, listed on this page.

Is Z49 (Encounter for care involving renal dialysis) a billable code?

No. This is a category header that groups the codes for encounter for care involving renal dialysis, and headers cannot be submitted on claims. Claims for encounter for care involving renal dialysis need a more specific code from this category, such as Z49.01, Z49.02, and Z49.31.