T84.099 — Other mechanical complication of unspecified internal joint prosthesis
T84.099 is a non-billable header ICD-10-CM code for other mechanical complication of unspecified internal joint prosthesis. It cannot be billed on its own: choose one of the more specific child codes below. This code also requires a 7th character before it is complete.
This code requires a 7th character
The appropriate 7th character is to be added to each code from category T84
- A
- initial encounter
- D
- subsequent encounter
- S
- sequela
Risk adjustment
T84.099 does not map to an HCC and does not risk-adjust under CMS-HCC V28. That is normal — most ICD-10 codes do not. It still needs to be coded correctly; it just will not move a RAF score.
How T84.099 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to T84.099.
- Complication›joint prosthesis, internal›mechanical›specified complication NEC
Code to one of these instead T84.099
3 child codes. Green means billable.
Related codes at this level
Codes that share T84.09. If T84.099 is not quite right, the correct code is usually one of these.
- T84.090Other mechanical complication of internal right hip prosthesis
- T84.091Other mechanical complication of internal left hip prosthesis
- T84.092Other mechanical complication of internal right knee prosthesis
- T84.093Other mechanical complication of internal left knee prosthesis
- T84.098Other mechanical complication of other internal joint prosthesis
Questions about T84.099
- Is T84.099 a billable ICD-10-CM code?
- No. T84.099 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
- Where does T84.099 sit in the tabular list?
- Injury, poisoning and certain other consequences of external causes (S00-T88), in the block Complications of surgical and medical care, not elsewhere classified (T80-T88).