T69.9XXA — Effect of reduced temperature, unspecified, initial encounter

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.

MS-DRG 922 — OTHER INJURY, POISONING AND TOXIC EFFECT DIAGNOSES WITH MCC (MDC 21)
MS-DRG 923 — OTHER INJURY, POISONING AND TOXIC EFFECT DIAGNOSES WITHOUT MCC (MDC 21)

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.

Effect of reduced temperature, unspecified, initial encounter is a billable ICD-10-CM diagnosis code (T69.9A).

Sequencing, inclusion, and exclusion notes published for T69.9XXA in the official ICD-10-CM tabular list.

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.

Code also, if applicable, place of occurrence, such as:
highway rest stop (Y92.523)
school (private) (public) (state) as the place of occurrence of the external cause (Y92.21-)
service areas as the place of occurrence of the external cause (Y92.52-)
single-family non-institutional (private) house as the place of occurrence of the external cause (Y92.01-)
transport vehicle as the place of occurrence of the external cause (Y92.81-)

Supplementary codes the tabular list directs you to add.

Yes. The appropriate 7th character is to be added to each code from category T69.

Official ICD-10-CM classifications closest to T69.9XXA in its code family, with their registry titles.