X31.XXXABillable
Exposure to excessive natural cold, initial encounter
- Chapter
- 20. External causes of morbidity
- Category
- X31
- Effective date
- October 1, 2026
Related codes in category X31
Frequently asked questions
What is ICD-10 code X31.XXXA?
X31.XXXA is an ICD-10-CM diagnosis code for Exposure to excessive natural cold, initial encounter.
Is X31.XXXA a billable code?
Yes. X31.XXXA is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is X31.XXXA in?
X31.XXXA falls under Chapter 20: External causes of morbidity.
When did X31.XXXA become effective?
X31.XXXA has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to X31.XXXA?
X31.XXXA belongs to category X31, which includes 3 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.