S00.421S

✓ Billable

Blister (nonthermal) of right ear, sequela

Injury, poisoning and certain other consequences of external causes (S00-T88)

✅ No additional coding notes for S00.421S

🧪 Validate Combinations

Add S00.421S to the Excludes Checker to validate against your full code list.

Code Information

CodeS00.421S

BillableYes

CategoryInjury, poisoning and certain other consequences of external causes (S00-T88)

Excludes10 rule(s)

Excludes20 note(s)

Data Source

CMS ICD-10-CM 2026 Tabular List

Updated October 1, 2025 (FY2026)