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T23.421S

ICD-10-CM 2027 · Billable

Corrosion of unspecified degree of single right finger (nail) except thumb, sequela

Sibling codes

  • T23.421A – Corrosion of unspecified degree of single right finger (nail) except thumb, initial encounter
  • T23.421D – Corrosion of unspecified degree of single right finger (nail) except thumb, subsequent encounter

Inherited from T23.4: Corrosion of unspecified degree of wrist and hand

Code first

  • (T51-T65) to identify chemical and intent

Use additional code

  • external cause code to identify place (Y92)

Inherited from T23: Burn and corrosion of wrist and hand

7th character

  • A = initial encounter
  • D = subsequent encounter
  • S = sequela

7th character note

  • The appropriate 7th character is to be added to each code from category T23

Part of: T23.421: Corrosion of unspecified degree of single right finger (nail) except thumb › T23.42: Corrosion of unspecified degree of single finger (nail) except thumb › T23.4: Corrosion of unspecified degree of wrist and hand › T23: Burn and corrosion of wrist and hand