ICD-10 CM Code S90.421
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S90 Superficial injury of ankle, foot and toes
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S90.4 Other superficial injuries of toe
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S90.42 Blister (nonthermal) of toe
S90.421
Blister (nonthermal), right great toe
7th Character
- The appropriate 7th character is to be added to each code from category S90
- A - initial encounter
- D - subsequent encounter
- S - sequela
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