Z92.859 Personal history of cellular therapy, unspecified

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

Applies from Z92 Personal history of medical treatment

Excludes2 (not included here)

• postprocedural states (Z98.-)

Applies from Z92.85 Personal history of cellular therapy

Excludes2 (not included here)

• personal history of immune checkpoint inhibitor therapy (Z92.26)

MS-DRG index

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

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 Z92.859

Back-references to Z92

• Type 2 Excludes: Z87.7 Personal history of (corrected) congenital malformations ("personal history of medical treatment (Z92.-)")

Diagnosis Index entries for Z92.859

• History › personal (of) › cellular therapy

Nearby codes

• Z92.83 Personal history of failed moderate sedation
• Z92.84 Personal history of unintended awareness under general anesthesia
• Z92.85 Personal history of cellular therapy
• Z92.850 Personal history of Chimeric Antigen Receptor T-cell therapy
• Z92.858 Personal history of other cellular therapy
• Z92.859 Personal history of cellular therapy, unspecified (this code)
• Z92.86 Personal history of gene therapy
• Z92.89 Personal history of other medical treatment