Billing Status: YES. This is a valid, specific, and billable ICD-10-CM reference.

Inpatient Payment Groups (MS-DRG)

MS-DRGs this diagnosis helps define, as principal or secondary, per the CMS ICD-10-CM/PCS MS-DRG Definitions Manual v43.0 (FY2026), Appendix B.

A diagnosis appearing in a group's logic does not by itself determine the DRG assigned to a stay; the grouper uses the full claim.

Code Set: Valid FY2026 and FY2027. FY2026 took effect October 1, 2025.

Official Registry Overview & Definition

Personal history of irradiation is a billable ICD-10-CM diagnosis code (Z92.3).

Sequencing, inclusion, and exclusion notes published for Z92.3 in the official ICD-10-CM tabular list.

Alternative terms the tabular list files under this code.

Conditions that can never be reported with this code; the two are mutually exclusive.

Conditions not covered by this code, but which may be reported alongside it when both are present.

Additional codes that may be required to fully describe the encounter.

Official ICD-10-CM classifications closest to Z92.3 in its code family, with their registry titles.

Z92.240 — Personal history of inhaled steroid therapy
Z92.241 — Personal history of systemic steroid therapy
Z92.25 — Personal history of immunosuppression therapy
Z92.26 — Personal history of immune checkpoint inhibitor therapy
Z92.29 — Personal history of other drug therapy
Z92.8 — Personal history of other medical treatment
Z92.81 — Personal history of extracorporeal membrane oxygenation (ECMO)
Z92.82 — Status post administration of tPA (rtPA) in a different facility within the last 24 hours prior to admission to current facility
Z92.83 — Personal history of failed moderate sedation
Z92.84 — Personal history of unintended awareness under general anesthesia

Clinical term phrases from the official ICD-10-CM Index to Diseases and Injuries that map to this code.