AutoICD API

QC4Z

Personal history of health problems, unspecified

Personal history of health problems, unspecified

Classification

ICD-11

Parent Code

BlockL3-QC4

ICD-10 Mapping

6 equivalents
ICD-10 Equivalents(6)

ICD-10 Equivalents

View full mapping

Corresponding ICD-10-CM codes from the WHO crosswalk mapping

Z86Personal history of certain other diseasesequivalentPrimaryZ87Personal history of other diseases and conditionsequivalentPrimaryZ87.8Personal history of other specified conditionsequivalentPrimaryZ91Personal risk factors, not elsewhere classifiedequivalentPrimaryZ917equivalentPrimaryZ91.8Oth personal risk factors, not elsewhere classifiedequivalentPrimary
Also Known As / Clinical Terms(5)

UMLS ↗

Frequently Asked Questions
What is the ICD-11 code for personal history of health problems, unspecified?

The ICD-11 code for personal history of health problems, unspecified is QC4Z. The full clinical description is "Personal history of health problems, unspecified".

What does ICD-11 code QC4Z mean?

ICD-11 code QC4Z represents “Personal history of health problems, unspecified”. It is classified under Chapter 24: Factors Influencing Health Status or Contact With Health Services.

What chapter is QC4Z in?

QC4Z is in Chapter 24: Factors Influencing Health Status or Contact With Health Services (codes QA00-QF4Z).

What is the ICD-10 equivalent of ICD-11 code QC4Z?

QC4Z maps to 6 ICD-10 codes: Z86 (Personal history of certain other diseases), Z87 (Personal history of other diseases and conditions), Z87.8 (Personal history of other specified conditions), and 3 more. ICD-10 and ICD-11 do not always have one-to-one mappings — check the mapping type (equivalent, approximate, narrower, or broader) for each result.

What is the difference between ICD-10 and ICD-11?

ICD-11 is the latest revision of the WHO's International Classification of Diseases, succeeding ICD-10. Key differences include: a fully digital-first design, new chapters for sleep-wake disorders, sexual health, and traditional medicine, improved coding for rare diseases, and better integration with electronic health records through extension codes.

What UMLS concepts map to ICD-11 code QC4Z?

QC4Z is linked to 5 UMLS Concept Unique Identifiers: C0260463, C0496724, C0478635, C2911444, C2911480. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.

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Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.