Z86.2 Personal history of diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism

Billable ICD-10-CM code, FY2026. Exempt from present-on-admission (POA) reporting.

Applicable to

• Conditions classifiable to D50-D89

Applies from Z86 Personal history of certain other diseases

Code first

• any follow-up examination after treatment (Z09)

MS-DRG index

Defines the logic of DRG(s) 951 in MDC 23.

Approximate ICD-9-CM (GEMs)

• V12.29 Personal history of other endocrine, metabolic, and immunity disorders (approximate)
• V12.3 Personal history of diseases of blood and blood-forming organs (approximate)

Medicare Code Edits (MCE v43.1 (April 2026))

• Unacceptable principal diagnosis: These codes describe a circumstance which influences care but is not a current illness or injury, or capture only an underlying condition, and are unacceptable as principal diagnosis.

Code annotations containing back-references to Z86.2

Back-references to Z86

• Use Additional: Z09 Encounter for follow-up examination after completed treatment for conditions other than malignant neoplasm ("code to identify any applicable history of disease code (Z86.-, Z87.-)")

Diagnosis Index entries for Z86.2

• History › personal (of) › disease or disorder (of) › blood and blood-forming organs
• History › personal (of) › disease or disorder (of) › hematological
• History › personal (of) › disease or disorder (of) › immune mechanism

Nearby codes

• Z86.13 Personal history of malaria
• Z86.14 Personal history of Methicillin resistant Staphylococcus aureus infection
• Z86.15 Personal history of latent tuberculosis infection
• Z86.16 Personal history of COVID-19
• Z86.19 Personal history of other infectious and parasitic diseases
• Z86.2 Personal history of diseases of the blood and blood-forming organs and certain disorders involving the immune mechanism (this code)
• Z86.3 Personal history of endocrine, nutritional and metabolic diseases
• Z86.31 Personal history of diabetic foot ulcer
• Z86.32 Personal history of gestational diabetes
• Z86.39 Personal history of other endocrine, nutritional and metabolic disease
• Z86.5 Personal history of mental and behavioral disorders