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S82.91XB vs T20

S82.91XB (Unspecified fracture of right lower leg, initial encounter for open fracture type I or II) compared with T20 (Burn and corrosion of head, face, and neck), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2). MedCoder-derived

Can these codes be reported together?

Informational

Excludes2 relationship

S82.91XB
Unspecified fracture of right lower leg, initial encounter for open fracture type I or II
↔
T20
Burn and corrosion of head, face, and neck

What we found

Yes, when both are documented.S82.91XB carries an Excludes2 note covering T20: “burns and corrosions (T20-T32)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

What to review

Report both only when the documentation supports both conditions; otherwise report the one documented.

Guide: Excludes1 vs Excludes2Check these on a claim

Why it matters

An Excludes2 note means the excluded condition is not part of the code above it, but a patient can have both. Report both when both are documented.

Source / rule

CMS ICD-10-CM tabular instructional notes

Side by side

S82.91XBUnspecified fracture of right lower leg, initial encounter for open fracture type I or IIT20Burn and corrosion of head, face, and neck
Billing statusBillableNon-billable header

Report instead: T20.00XA, T20.00XD, T20.00XS, T20.011A, T20.011D

ClassificationS00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)S00-T88 — Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88)
DefinitionUnspecified fracture of right lower leg, initial encounter for open fracture type I or II is a billable ICD-10-CM diagnosis code (S82.91XB).Burn and corrosion of head, face, and neck is a non-billable ICD-10-CM category code (T20).
7th characterThe appropriate 7th character is to be added to all codes from category S82The appropriate 7th character is to be added to each code from category T20
Includes
fracture of malleolus
burns and corrosions of first degree [erythema]
burns and corrosions of second degree [blisters][epidermal loss]
burns and corrosions of third degree [deep necrosis of underlying tissue] [full- thickness skin loss]
Excludes1
traumatic amputation of lower leg (S88.-)
—
Excludes2
fracture of foot, except ankle (S92.-)
periprosthetic fracture around internal prosthetic ankle joint (M97.2)
periprosthetic fracture around internal prosthetic implant of knee joint (M97.1-)
burns and corrosions (T20-T32)
frostbite (T33-T34)
injuries of ankle and foot, except fracture of ankle and malleolus (S90-S99)
insect bite or sting, venomous (T63.4)
burn and corrosion of ear drum (T28.41, T28.91)
burn and corrosion of eye and adnexa (T26.-)
burn and corrosion of mouth and pharynx (T28.0)
Use additional code—
code from category T31 or T32 to identify extent of body surface involved

Notes are the code’s own tabular entry, quoted as published. A note that names the other code is the one the verdict above rests on.

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Derived from the official CMS ICD-10-CM tabular data (FY2026). A coding-rule comparison, not billing advice: payer-specific edits and medical-necessity policy are outside its scope. All data sources