T24.422⚠ Requires 7th Character

Corrosion of unspecified degree of left 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 T24.422:

Ainitial encounterT24.422ADsubsequent encounterT24.422DSsequelaT24.422S

Sub-codes of T24.422(3)

T24.422 is a non-billable header. Select a sub-code to bill.

T24.422ACorrosion of unspecified degree of left knee, initial encoun…✓ BillableT24.422DCorrosion of unspecified degree of left knee, subsequent enc…✓ BillableT24.422SCorrosion of unspecified degree of left knee, sequela✓ Billable

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

These clinical terms, synonyms, and manifestations all map to T24.422 in the official ICD-10-CM Alphabetic Index.

Corrosion (injury) (acid) (caustic) (chemical) (lime) (external) (internal), knee, left

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
└T24.422Corrosion of unspecified degree of left knee

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