T31.0 ICD-10-CM Code: Burns involving less than 10% of body surface
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FY 2026 Apr update / Injury, poisoning and certain other consequences of external causes (S00-T88) / Burns and corrosions of multiple and unspecified body regions (T30-T32)
T31.0
Billable / SpecificICD-10-CMOfficial ICD-10-CMCodebook guidanceBurns involving less than 10% of body surface
A burn injury affecting less than 10% of the total body surface area.
CMS-HCC V28
00
RAF 0
CMS-HCC V24
00
RAF 0
ACA/HHS
00
RAF 0
ESRD/PACE
00
RAF 0
RXHCC
00
RAF 0
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Code Book Path
Inclusion Terms
OfficialICD-10-CM does not list inclusion terms for T31.0 in this effective period.
Excludes 2
OfficialICD-10-CM does not list Excludes 2 notes for T31.0 in this effective period.
Related Child Codes
Includes
OfficialICD-10-CM does not list Includes notes for T31.0 in this effective period.
Excludes 1
OfficialICD-10-CM does not list Excludes 1 notes for T31.0 in this effective period.
Code First
OfficialICD-10-CM does not list Code First sequencing instructions for T31.0 in this effective period.
Use Additional
OfficialICD-10-CM does not list Use Additional Code instructions for T31.0 in this effective period.
Code Also
OfficialICD-10-CM does not list Code Also instructions for T31.0 in this effective period.
Buddy Documentation Tip
Last updated: FY2026 ICD-10-CM Apr update, Apr 1, 2026 through Sep 30, 2026. CMS-HCC V28 is 100% phased in for payment year 2026.
Is T31.0 an HCC code?
No. T31.0 is a billable ICD-10-CM code but does not map to any HCC category in V28, V24, ESRD, or RxHCC.
Coder workflow notes
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This code does not map to an HCC category in any model (V28, V24, ESRD, RxHCC).
What This Code Means
T31.0 is the ICD-10-CM diagnosis code for burns involving less than 10% of body surface. A burn injury affecting less than 10% of the total body surface area. T31.0 sits in the ICD-10-CM chapter for injury, poisoning and certain other consequences of external causes (s00-t88), within the section covering burns and corrosions of multiple and unspecified body regions (t30-t32).
T31.0 is a billable ICD-10-CM code but does not map to a payment HCC under the CMS-HCC V28, V24, ESRD, or RxHCC risk adjustment models. It can be reported on Medicare Advantage encounter data submissions but it does not contribute to a beneficiary's RAF score and therefore does not affect risk-adjusted payments to the plan.
This code indicates a relatively minor burn; ensure the percentage documented is truly less than 10% of body surface area.
HCC Buddy maintains structured V28 and V24 mapping, RAF weights, and MEAT documentation criteria for T31.0 sourced directly from the CMS-HCC risk adjustment model files and the CMS ICD-10-CM code set.
Coding Tips
- •This code indicates a relatively minor burn; ensure the percentage documented is truly less than 10% of body surface area
- •If the degree of burn (first, second, or third degree) is documented, consider using more specific codes from the T31 series