T31.20 Burns involving 20-29% of body surface with 0% to 9% third degree burns

Billable ICD-10-CM code, FY2026. Acts as a Complication or Comorbidity (CC) as a secondary diagnosis.

Applicable to

• Burns involving 20-29% of body surface NOS

Applies from T31 Burns classified according to extent of body surface involved

Notes

• This category is to be used as the primary code only when the site of the burn is unspecified. It should be used as a supplementary code with categories T20-T25 when the site is specified.

MS-DRG index

Defines the logic of DRG(s) 935 in MDC 22.

Approximate ICD-9-CM (GEMs)

• 948.20 Burn [any degree] involving 20-29 percent of body surface with third degree burn, less than 10 percent or unspecified (approximate)

Code annotations containing back-references to T31.20

Back-references to T31

• Type 1 Excludes: T66 Radiation sickness, unspecified ("burns (T20-T31)")
• Type 2 Excludes: T67 Effects of heat and light ("burns (T20-T31)")
• Type 2 Excludes: T75 Other and unspecified effects of other external causes ("burns (electric) (T20-T31)")

Diagnosis Index entries for T31.20

• Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal) › extent (percentage of body surface) › 20-29 percent
• Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal) › extent (percentage of body surface) › 20-29 percent › with 0-9 percent third degree burns
• Burn (electricity) (flame) (hot gas, liquid or hot object) (radiation) (steam) (thermal) › unspecified site with extent of body surface involved specified › 20-29 percent (0-9 percent third degree)

Nearby codes

• T31.0 Burns involving less than 10% of body surface
• T31.1 Burns involving 10-19% of body surface
• T31.10 Burns involving 10-19% of body surface with 0% to 9% third degree burns
• T31.11 Burns involving 10-19% of body surface with 10-19% third degree burns
• T31.2 Burns involving 20-29% of body surface
• T31.20 Burns involving 20-29% of body surface with 0% to 9% third degree burns (this code)
• T31.21 Burns involving 20-29% of body surface with 10-19% third degree burns
• T31.22 Burns involving 20-29% of body surface with 20-29% third degree burns
• T31.3 Burns involving 30-39% of body surface
• T31.30 Burns involving 30-39% of body surface with 0% to 9% third degree burns
• T31.31 Burns involving 30-39% of body surface with 10-19% third degree burns