ICD-10-CM 2027 diagnosis code

S05.91Unspecified injury of right eye and orbit

Not billable — use a more specific codeRequires 7th character

S05.91 is a header code, so it can't be reported by itself. Choose one of the 3 more specific codes beneath it and add the required 7th character.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About S05.91

S05.91 is the ICD-10-CM diagnosis code for unspecified injury of right eye and orbit. It belongs to category S05 (injury of eye and orbit), block S00-S09 (injuries to the head) and chapter 19 (injury, poisoning and certain other consequences of external causes). It is a header code, so it can't be reported by itself; one of its 3 subcodes must be used instead.

Within S05.9 (unspecified injury of eye and orbit), S05.91 is specifically for unspecified injury of right eye and orbit. Related codes cover unspecified eye and orbit (S05.90) and left eye and orbit (S05.92).

Codes in this range require a 7th character: A for initial encounter, D for subsequent encounter and S for sequela. Use placeholder "X" characters to fill any empty positions before the 7th character.

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

7th character

The appropriate 7th character is to be added to each code from category S05

Ainitial encounterS05.91XA
Dsubsequent encounterS05.91XD
SsequelaS05.91XS

Notes that apply from higher levels

Instructions written at a parent level also apply to S05.91.

› From S05 Injury of eye and orbit

Includes

open wound of eye and orbit

Excludes2

2nd cranial [optic] nerve injury (S04.0-)
3rd cranial [oculomotor] nerve injury (S04.1-)
open wound of eyelid and periocular area (S01.1-)
orbital bone fracture (S02.1-, S02.3-, S02.8-)
superficial injury of eyelid (S00.1-S00.2)

Broader instructions also apply from S00-S09 Injuries to the head and Chapter 19: Injury, poisoning and certain other consequences of external causes.

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about S05.91

Is S05.91 billable?: No. S05.91 is a header code. Report one of its more specific subcodes instead.