T24.521⚠ Requires 7th Character

Corrosion of first degree of right knee

⚠ 7th Character Required

The appropriate 7th character is to be added to each code from category T24

This code is not valid for billing without a 7th character. Append one of the following to T24.521:

Ainitial encounterT24.521ADsubsequent encounterT24.521DSsequelaT24.521S

Sub-codes of T24.521(3)

T24.521 is a non-billable header. Select a sub-code to bill.

T24.521ACorrosion of first degree of right knee, initial encounter✓ BillableT24.521DCorrosion of first degree of right knee, subsequent encounte…✓ BillableT24.521SCorrosion of first degree of right knee, sequela✓ Billable

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

These clinical terms, synonyms, and manifestations all map to T24.521 in the official ICD-10-CM Alphabetic Index.

Corrosion (injury) (acid) (caustic) (chemical) (lime) (external) (internal), knee, right, first 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)├T24Burn and corrosion of lower limb, except ankle and foot
└T24.521Corrosion of first degree of right knee

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