MCMCB Pro
T85.618

T85.618Breakdown (mechanical) of other specified internal prosthetic devices, implants and grafts

Non-billable headerICD-10-CM

T85.618 is a non-billable header ICD-10-CM code for breakdown (mechanical) of other specified internal prosthetic devices, implants and grafts. 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 T85

A
initial encounter
D
subsequent encounter
S
sequela

Risk adjustment

T85.618 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 T85.618 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 T85.618.

  • Breakdowndevice, graft or implant
  • Malfunctioncatheter device NEC
  • Breakdowndevice, graft or implantcatheter NEC
  • Breakdowndevice, graft or implantspecified NEC
  • Complicationprosthetic device or implantspecified NECmechanicalbreakdown
  • Complicationprosthetic device or implantspecified NECmechanicalmalfunction

Code to one of these instead T85.618

3 child codes. Green means billable.

Related codes at this level

Codes that share T85.61. If T85.618 is not quite right, the correct code is usually one of these.

Questions about T85.618

Is T85.618 a billable ICD-10-CM code?
No. T85.618 is a non-billable header code. Code to a higher level of specificity using one of its child codes.
Where does T85.618 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).
ICD-10-CMFY2026-Apr· effective April 1, 2026

Loaded directly from the CMS/NCHS ICD-10-CM public-domain release — see data sources and our editorial policy. If this page disagrees with the CMS tabular list, this page is wrong. Reference information for professional coders; not medical or billing advice.