S80.221⚠ Requires 7th Character

Blister (nonthermal), right knee

⚠ 7th Character Required

The appropriate 7th character is to be added to each code from category S80

This code is not valid for billing without a 7th character. Append one of the following to S80.221:

Ainitial encounterS80.221ADsubsequent encounterS80.221DSsequelaS80.221S

Sub-codes of S80.221(3)

S80.221 is a non-billable header. Select a sub-code to bill.

S80.221ABlister (nonthermal), right knee, initial encounter✓ BillableS80.221DBlister (nonthermal), right knee, subsequent encounter✓ BillableS80.221SBlister (nonthermal), right knee, sequela✓ Billable

Code Hierarchy

┌19Injury, poisoning and certain other consequences of external causes (S00-T88)├S80-S89Injuries to the knee and lower leg (S80-S89)├S80Superficial injury of knee and lower leg
└S80.221Blister (nonthermal), right knee

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