ICD-10-CM FY2027 diagnosis code

X31.XXXA: Exposure to excessive natural cold, initial encounter

Billable codeValid for dates of service October 1, 2026 to September 30, 2027

X31.XXXA is a billable ICD-10-CM diagnosis code for exposure to excessive natural cold, initial encounter. It is specific enough to use on an insurance claim, a superbill or a Good Faith Estimate.

X31.XXXA questions

Is X31.XXXA a billable code?

Yes. X31.XXXA is a billable ICD-10-CM code and can be used on claims and superbills for dates of service from October 1, 2026 to September 30, 2027.

What does X31.XXXA mean?

X31.XXXA is the ICD-10-CM code for Exposure to excessive natural cold, initial encounter. It is in chapter 21, External causes of morbidity (V00-Y99).

Code titles come from the official ICD-10-CM files published by the CDC National Center for Health Statistics. Always check payer rules and the clinical record before billing.