X31.XXXA
X31.XXXA: Exposure to excessive natural cold, initial encounter
Billable / specific codeICD-10-CMPOA exempt
X31.XXXA is a billable, specific ICD-10-CM code for exposure to excessive natural cold, initial encounter. It is valid for submission on a claim.
Check X31.XXXA with the rest of the claim: free scrubber7th character "A": initial encounter
The appropriate 7th character is to be added to code X31
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Excludes1: never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Excessive cold as the cause of chilblains NOS
- Excessive cold as the cause of immersion foot or hand
- Exposure to cold NOS
- Exposure to weather conditions
Risk adjustment
No CMS-HCC V28 category: this code does not change a RAF score.
Code history
Unchanged in every release from FY2024 to FY2027.