S90.421

Billable
ChapterS00–T88
Ranksubcategory
Official Description

Blister (nonthermal), right great toe

Metadata & Insights
  • Billable/specific code (valid for reimbursement).
  • Chapter 19: Injury, Poisoning and Certain Other Consequences of External Causes (S00-T88).
General instructions are available for the parent sections:

Clinical Hierarchy

BillableHas subcodes
CH19Injury, poisoning and certain other consequences of external causes (S00-T88)
S90-S99Injuries to the ankle and foot (S90-S99)
S90Superficial injury of ankle, foot and toes
S90.4Other superficial injuries of toe
S90.42Blister (nonthermal) of toe
S90.421Blister (nonthermal), right great toeBillable
S90.421ABlister (nonthermal), right great toe, initial encounterBillable
S90.421DBlister (nonthermal), right great toe, subsequent encounterBillable
S90.421SBlister (nonthermal), right great toe, sequelaBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to S90.421:

blockS90-S99
Injuries to the ankle and foot (S90-S99)
View context instructions
chapterCH19
Injury, poisoning and certain other consequences of external causes (S00-T88)
View context instructions

MS-DRG Classification

2026

No direct MS-DRG triggers identified.

Cross Reference

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