T21.64⚠ Requires 7th Character

Corrosion of second degree of lower back

⚠ 7th Character Required

The appropriate 7th character is to be added to each code from category T21

This code is not valid for billing without a 7th character. Append one of the following to T21.64:

Ainitial encounterT21.64XADsubsequent encounterT21.64XDSsequelaT21.64XS

Sub-codes of T21.64(3)

T21.64 is a non-billable header. Select a sub-code to bill.

T21.64ACorrosion of second degree of lower back, initial encounter✓ BillableT21.64DCorrosion of second degree of lower back, subsequent encount…✓ BillableT21.64SCorrosion of second degree of lower back, sequela✓ Billable

Also Indexed As(ICD-10-CM Alphabetic Index)

These clinical terms, synonyms, and manifestations all map to T21.64 in the official ICD-10-CM Alphabetic Index.

Corrosion (injury) (acid) (caustic) (chemical) (lime) (external) (internal), back (lower), second degree

Code Hierarchy

┌19Injury, poisoning and certain other consequences of external causes (S00-T88)├T20-T25Burns and corrosions of external body surface, specified by site (T20-T25)├T21Burn and corrosion of trunk
└T21.64Corrosion of second degree of lower back

Not sure between two codes?

⇄ Compare T21.64 with another code →
← Back to search