2026 ICD-10-CM Diagnosis Code Z53.8Procedure and treatment not carried out for other reasons

ICD-10-CM Codes›Z00–Z99›Z40-Z53›Z53

ICD-10-CM Z53.8
CMSSource: CMS FY 2026 ICD-10-CM dataset · Effective Oct 1, 2025 – Sep 30, 2026

Z53.8 is a billable ICD-10-CM diagnosis code for procedure and treatment not carried out for other reasons. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is not accepted as a principal diagnosis by the Medicare Code Editor. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified status.

Code Identity

ICD-10-CM Code
Z53.8
Billable Status
Yes — Valid for Submission
Code Describes
Procedure and treatment not carried out for other reasons
Short Description
Procedure and treatment not carried out for other reasons
Same as the full description in the CMS dataset.
Parent Code
Z53
Persons encountering health services for specific procedures and treatment, not carried out

Code Classification

ChapterZ00–Z99Factors influencing health status and contact with health services
SectionZ40-Z53Encounters for other specific health care
CategoryZ53Persons encountering health services for specific procedures and treatment, not carried out
This CodeZ53.8Procedure and treatment not carried out for other reasons

Code EditsBilling

Medicare Code Editor checks that affect claim validity for Z53.8.

Unacceptable principal diagnosis
There are selected codes that describe a circumstance which influences an individual's health status but not a current illness or injury, or codes that are not specific manifestations but may be due to an underlying cause. These codes are considered unacceptable as a principal diagnosis.

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Doctor walked out
  • Drug discontinued - too expensive
  • Drug not available - off market
  • Drug not available - out of stock
  • Drug not taken - patient lost tablets
  • Drug not taken - problem swallowing
  • Drug not taken - side-effects
  • Drug treatment stopped - patient ran out of tablets
  • Drug treatment stopped patient ran out of medication
  • Drugs not issued
  • ERCP not completed due to anatomical derangements from previous surgery
  • Healthcare professional forgot to administer medication
  • Healthcare professional not available to administer medication
  • Late for appointment
  • Medication therapy management recommendation declined by prescriber
  • Neonatal vitamin K administration declined by caregiver
  • No antenatal care
  • No antenatal care: not known pregnant
  • No anti-cancer treatment - poor performance status
  • No anti-cancer treatment - significant co-morbidity
  • No anti-cancer treatment - watchful waiting
  • No anti-cancer treatment available
  • No anti-cancer treatment due to unknown primary
  • No history of procedure
  • No smear - benign hysterectomy
  • No smear - no cervix
  • No smear - not sexually active
  • No smear-amputation of cervix
  • Patient not available to receive medication
  • Patient on vacation
  • Patient too late
  • Patient unable to contact out of hours doctor
  • Patient unavailable
  • Reason for no specific anti-cancer treatment
  • Reasons for treatment
  • Reasons for treatment delay
  • Recommendation declined
  • Tablets too large to swallow
  • Treatment delay - clinical reason
  • Treatment delay - logistic reason

Index to Diseases and InjuriesGuidance

Alphabetical index entries that point to this code.

External Cause of Injuries IndexGuidance

References for this code in the External Cause of Injuries Index.

    • Canceled procedure(surgical)
      • because of
        • specified reason NEC
    • Procedure(surgical)
      • not done
        • because of
          • administrative reasons
    • Procedure(surgical)
      • not done
        • because of
          • specified reason NEC

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR FAC025
Other specified status
Default principal diagnosis: inpatient No · outpatient Yes

Convert Z53.8 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
V64.3 No proc for reasons NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2025No changes
FY 2026CurrentCurrent code set, no changesEffective October 1, 2025 through September 30, 2026.

Questions About Z53.8Overview

Is Z53.8 a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report procedure and treatment not carried out for other reasons on HIPAA-covered claims from October 1, 2025 through September 30, 2026.

Can Z53.8 be a principal diagnosis?

No. The Medicare Code Editor rejects this code as a principal diagnosis because procedure and treatment not carried out for other reasons describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.

What is the ICD-9 equivalent of Z53.8?

Under the General Equivalence Mappings, procedure and treatment not carried out for other reasons converts to ICD-9-CM V64.3 (no proc for reasons NEC). The mapping is approximate, so confirm the match fits the documentation.