ICD-10 T31.20
Billable / Specific CCBurns involving 20-29% of body surface with 0% to 9% third degree burns
About ICD-10-CM T31.20
ICD-10-CM code T31.20 represents Burns involving 20-29% of body surface with 0% to 9% third degree burns. This is a billable/specific code in the Injury, Poisoning, and External Causes chapter (block T31). The 2026 edition of ICD-10-CM T31.20 became effective on October 1, 2025.
Coding Tips for T31.20
Specialist guidance from the PayerReady Medical Coding Team. Specificity warnings, HCC capture rules, sequencing notes.
T31.20 is designated CC for MS-DRG grouping. On inpatient claims, this code can shift the DRG to the with-CC variant when documented as a present-on-admission secondary diagnosis. Hospital CDI programs flag CC opportunities during chart review. Failure to capture this code may leave 30 to 80 percent of the inpatient stay revenue unrealized.
Injury codes require a 7th character: A (initial encounter, active treatment), D (subsequent, healing/recovery), S (sequela, late effect of original injury). Codes with fewer than 6 characters need the placeholder X to bring them to 6 characters before adding the 7th. Wrong or missing 7th character is the #1 cause of injury claim denials.
Inclusion Terms / Approximate Synonyms
Clinical terms and conditions classified under T31.20. Per CMS ICD-10-CM Tabular 2026.
- Burns involving 20-29% of body surface NOS
Inpatient DRG Impact, CC
1886:110 codes Burns involving 20-29% of body surface with 0% to 9% third degree burns. As a Complication/Comorbidity (CC), this contributes to DRG severity adjustment when documented alongside the principal diagnosis.
Medicare LCD Coverage for T31.20
Local Coverage Determinations (LCDs) from CMS MACs that list T31.20 as a covered diagnosis.
Showing top 10 of 136 total . Click a CPT for full coverage scope.
Commercial Payer Coverage
Coverage policies from major commercial payers referencing T31.20.
5 Medicare
CPT Codes Commonly Billed with T31.20
Procedures frequently paired with this diagnosis based on PayerReady's Dx↔Px linkage data.
We don't have CPT pairings indexed for this specific code yet. Use the CPT search above to find common procedures, or check your payer's published medical policy for code-specific guidance.
Convert T31.20 to ICD-9-CM
Per CMS General Equivalence Mappings (GEMs), useful for legacy data review and historical claim analysis.
| ICD-10 | ICD-9 | Mapping Flags |
|---|---|---|
| T31.20 | 94820 | 10000 |
Flags format (5 digits): Approximate · No Map · Combination · Scenario · Choice List. Source: CMS 2017 GEMs (final version).
Codes Adjacent To T31.20
Other codes in section T30-T32 (Burns and corrosions of multiple and unspecified body regions).
ICD-10 T31.20, Billing FAQ
Is ICD-10 code T31.20 billable? +
Yes, T31.20 is a billable ICD-10-CM code that can appear as a primary or secondary diagnosis on claims.
What other names or terms map to T31.20? +
ICD-10 T31.20 includes: Burns involving 20-29% of body surface NOS.
Is T31.20 a CC or MCC for inpatient DRG? +
Yes, this code is designated as CC. Documenting as a secondary diagnosis on inpatient claims can shift the DRG to a higher-weighted category.
What ICD-9 codes does T31.20 map to? +
Per CMS GEMs, T31.20 maps to ICD-9 codes: 94820. Useful for legacy data review and historical claim analysis.
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Reviewed by the PayerReady Medical Coding Team
Verified against the CMS 2026 code set on May 31, 2026.
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