Z48Not billable, use a more specific code below

Encounter for other postprocedural aftercare

In Encounters for other specific health care (Z40-Z53), chapter 21: Factors Influencing Health Status and Contact with Health Services

23 billable codes under Z48: 6 are a CC; 5 map to HCC 221 (Heart Transplant Status/Complications), HCC 276 (Lung Transplant Status/Complications), HCC 62 (Liver Transplant Status/Complications) and 1 more HCCs.A CC or MCC (major CC) is a secondary diagnosis that raises the MS-DRG payment. An HCC counts toward a Medicare Advantage patient's risk score.

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Instructional notes

Excludes1: not coded here, use a different code

  • encounter for follow-up examination after completed treatment (Z08-Z09)
  • encounter for aftercare following injury - code to Injury, by site, with appropriate 7th character for subsequent encounter

Excludes2: not included here, code separately if applicable

  • encounter for attention to artificial openings (Z43.-)
  • encounter for fitting and adjustment of prosthetic and other devices (Z44-Z46)

Also applies, from Encounters for other specific health care (Z40-Z53)

These notes sit on Z40-Z53 and apply to every code under it, including Z48.

Includes: conditions that are coded here

  • Categories Z40-Z53 are intended for use to indicate a reason for care. They may be used for patients who have already been treated for a disease or injury, but who are receiving aftercare or prophylactic care, or care to consolidate the treatment, or to deal with a residual state

Excludes2: not included here, code separately if applicable

  • follow-up examination for medical surveillance after treatment (Z08-Z09)

Official coding guidelines

From the ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027 (CMS and NCHS). Links open the PDF at the right page.

Covers when and how to use Z codes (Z00-Z99) for encounters and supplementary information, including contact, status, history, screening, aftercare, exams, and social determinants of health.

Read Section I.C.21 (page 92)

All codes under Z48

Z48 can't be used on a claim. Pick a billable code below; grey headings group them.

Z48 MS-DRGs

As the principal diagnosis, the billable codes under Z48 group to MS-DRG 949, 950, or 951 (v44.0). Which one applies depends on procedures performed, secondary diagnoses (CC/MCC), and the patient's age and discharge status.

Code history

Valid since FY2016, when ICD-10-CM took effect on October 1, 2015. No changes since.