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ICD-10-CM Chapter 21
Factors influencing health status and contact with health services

Chapter 21 of the 2016 edition of the ICD-10-CM contains ICD codes that cover factors influencing health status and contact with health services, in the code range Z00-Z99.

Code Range Section Description
Z00-Z13 Persons encountering health services for examinations
Z14-Z15 Genetic carrier and genetic susceptibility to disease
Z16 Resistance to antimicrobial drugs
Z17 Estrogen receptor status
Z18 Retained foreign body fragments
Z20-Z28 Persons with potential health hazards related to communicable diseases
Z30-Z39 Persons encountering health services in circumstances related to reproduction
Z40-Z53 Encounters for other specific health care
Z55-Z65 Persons with potential health hazards related to socioeconomic and psychosocial circumstances
Z66 Do not resuscitate status
Z67 Blood type
Z68 Body mass index (BMI)
Z69-Z76 Persons encountering health services in other circumstances
Z77-Z99 Persons with potential health hazards related to family and personal history and certain conditions influencing health status

Coding Notes for Chapter 21

Chapter Notes:
Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Section 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.

** This Document Provided By ICD.Codes **
Source: http://icd.codes/icd10cm/chapter21