MCMCB Pro
T85.318A

T85.318ABreakdown (mechanical) of other ocular prosthetic devices, implants and grafts, initial encounter

Billable / specific codeICD-10-CM

T85.318A is a billable, specific ICD-10-CM code for breakdown (mechanical) of other ocular prosthetic devices, implants and grafts, initial encounter. It is valid for submission on a claim.

7th character "A" — initial encounter

The appropriate 7th character is to be added to each code from category T85

A
initial encounter
D
subsequent encounter
S
sequela

Risk adjustment

T85.318A 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.

Medicare coverage

T85.318A is named in 7 Medicare coverage policies 7 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.

  • A56457Billing and Coding: Corneal Pachymetry
  • A56537Billing and Coding: Scanning Computerized Ophthalmic Diagnostic Imaging (SCODI)
  • A56548Billing and Coding: Corneal Pachymetry
  • A56611Billing and Coding: Corneal Pachymetry

Related codes at this level

Codes that share T85.318. If T85.318A is not quite right, the correct code is usually one of these.

Questions about T85.318A

Is T85.318A a billable ICD-10-CM code?
Yes. T85.318A is a billable, specific ICD-10-CM code and is valid for submission on a claim.
Where does T85.318A 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.