ICD-10-CM Code X31
Exposure to excessive natural cold
NON-BILLABLE
7th Character Required
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ICD-10 from 2011 - 2016
Non-Billable Code
Non-Billable means the code is not sufficient justification for admission to an acute care hospital when used a principal diagnosis. Use a child code to capture more detail.7th Character Required
Code requires 7th Character Extension identifier. This 7th Character usually captures Episode of Care information, such as "Initial Encounter," "Subsquent Encounter," or "Sequela."ICD Code X31 is a non-billable code. To code a diagnosis of this type, you must use specify a 7th character that describes the diagnosis 'exposure to excessive natural cold' in more detail. The 7th characters that can be added, and the resulting billable codes, are as follows:
| 7th Digit | Billable Code | 7th Digit Specifies |
|---|---|---|
| A | X31.XXXA | initial encounter |
| D | X31.XXXD | subsequent encounter |
| S | X31.XXXS | sequela |
What is 7th Character Extension?
For codes less than 6 characters that require a 7th character a placeholder 'X' should be assigned for all characters less than 6. The 7th character must always be the 7th position of a code. E.g. The ICD-10-CM code T67.4 (Heat exhaustion due to salt depletion) requires an Episode of Care identifier. T67.4XXA Initial Encounter or T67.4XXD Subsequent Encounter. More InfoCoding Notes for X31 Info for medical coders on how to properly use this ICD-10 code
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Inclusion Terms:
Inclusion Terms
Inclusion Terms are a list of concepts for which a specific code is used. The list of Inclusion Terms is useful for determining the correct code in some cases, but the list is not necessarily exhaustive. - 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
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Code Type-1 Excludes:
Type-1 Excludes
Type-1 Excludes mean the conditions excluded are mutually exclusive and should never be coded together. Excludes 1 means "do not code here." - Cold of man-made origin - instead, use code W93.-
- Contact with or inhalation of dry ice - instead, use code W93.-
- Contact with or inhalation of liquefied gas - instead, use code W93.-
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7th Character Extension Notes:
What is 7th Character Extension?
For codes less than 6 characters that require a 7th character a placeholder 'X' should be assigned for all characters less than 6. The 7th character must always be the 7th position of a code. E.g. The ICD-10-CM code T67.4 (Heat exhaustion due to salt depletion) requires an Episode of Care identifier. T67.4XXA Initial Encounter or T67.4XXD Subsequent Encounter. More Info - The appropriate 7th character is to be added to code See Code X31
ICD-10-CM External Cause Index References for 'X31 - Exposure to excessive natural cold'
The ICD-10-CM External Cause Index links the below-listed medical terms to the ICD code X31. Click on any term below to browse the external cause index.