2027 ICD-10-CM Diagnosis Code S05.90XAUnspecified injury of unspecified eye and orbit, initial encounter
S05.90XA is a billable ICD-10-CM diagnosis code for unspecified injury of unspecified eye and orbit, initial encounter. The 7th character A marks it as an initial encounter code, used while the patient is receiving active treatment. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 124 through 125, 963 through 965. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other unspecified injury.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Angle recession
- Angle recession glaucoma
- Blunt injury
- Blunt injury of eye
- Corneal endothelial wound
- Discharge from wound of eye region
- Effects of lightning
- Eye injury from lightning
- Glaucoma due to and following ocular trauma
- Injury of ciliary ganglion
- Injury of cornea
- Injury of eye region
- Injury of eye region caused by bungee cord
- Injury of ganglion of nervous system
- Injury of globe of eye
- Injury of ocular adnexa
- Injury of orbit
- Injury of retina
- Injury of vitreous body
- Nonperforating wound of cornea
- Open angle glaucoma due to and following ocular trauma
- Parasympathetic nerve injury
- Post-traumatic retinitis
- Retinal damage
- Secondary ocular hypertension due to ocular trauma
- Superficial injury of cornea
- Superficial injury of eye
- Superficial injury of eye AND/OR adnexa
- Superficial injury of left eye
- Traumatic hematoma of orbit
- Traumatic injury of globe of eye
- Traumatic iris atrophy
- Traumatic orbital hemorrhage
- Wound of ocular adnexa
Coding GuidelinesGuidance
The appropriate 7th character is to be added to each code from block Injury of eye and orbit (S05). Use the following options for the applicable episode of care:
- A - initial encounter
- D - subsequent encounter
- S - sequela
Source: ICD-10-CM Official Guidelines for Coding and Reporting, FY 2027, published by CMS and the National Center for Health Statistics.
Instructional NotesGuidance
Instructions from the official ICD-10-CM Tabular List that apply to S05.90XA: its own notes plus those printed at S05, block S00-S09, and Chapter 19. A note printed at a category, block or chapter applies to every code under it.
Includes
Further defines, or gives examples of, the content of the category.
- open wound of eye and orbit
- injuries of ear
- injuries of eye
- injuries of face [any part]
- injuries of gum
- injuries of jaw
- injuries of oral cavity
- injuries of palate
- injuries of periocular area
- injuries of scalp
- injuries of temporomandibular joint area
- injuries of tongue
- injuries of tooth
Excludes2
Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.
- burns and corrosions (T20-T32)
- effects of foreign body in ear (T16)
- effects of foreign body in larynx (T17.3)
- effects of foreign body in mouth NOS (T18.0)
- effects of foreign body in nose (T17.0-T17.1)
- effects of foreign body in pharynx (T17.2)
- effects of foreign body on external eye (T15.-)
- frostbite (T33-T34)
- insect bite or sting, venomous (T63.4)
Use Additional Code
Add a second code, after this one, to fully describe the condition.
- code to identify any retained foreign body, if applicable (Z18.-)
Code Also
A second code may be needed to fully describe the condition; the note gives no sequencing direction.
- for any associated infection
Notes
General instructions on how these codes are used.
- Use secondary code(s) from Chapter 20, External causes of morbidity, to indicate cause of injury. Codes within the T section that include the external cause do not require an additional external cause code
- The chapter uses the S-section for coding different types of injuries related to single body regions and the T-section to cover injuries to unspecified body regions as well as poisoning and certain other consequences of external causes.
7th Character
Every code in the category takes a 7th character from the listed values, with the placeholder X filling any empty positions before it.
- The appropriate 7th character is to be added to each code from category S05
- Ainitial encounter this code
- Dsubsequent encounter
- Ssequela
Source: CMS ICD-10-CM Tabular List. How to read instructional notes.
Referenced in Other NotesGuidance
Instructional notes printed at other codes that name S05.90XA, its category, or a range that includes it.
Excludes1 3
These codes carry an Excludes1 note naming S05.90XA: they are not reported together with it, unless the two conditions are unrelated.
- H44.6 Retained (old) intraocular foreign body, magneticcurrent intraocular foreign body (S05.-) names S05.-, which includes this code
- H44.7 Retained (old) intraocular foreign body, nonmagneticcurrent intraocular foreign body (S05.-) names S05.-, which includes this code
- S00 Superficial injury of headinjury of eye and orbit (S05.-) names S05.-, which includes this code
Excludes2 2
These codes carry an Excludes2 note naming S05.90XA: its condition is not part of those codes, and both may be reported when the patient has both.
- Chapter 7 (H00-H59) Diseases of the eye and adnexainjury (trauma) of eye and orbit (S05.-) names S05.-, which includes this code
- S01 Open wound of headinjury of eye and orbit (S05.-) names S05.-, which includes this code
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Eye Injuries
The structure of your face helps protect your eyes from injury. Still, injuries can damage your eye, sometimes severely enough that you could lose your vision. Most eye injuries are preventable. If you play sports or work in certain jobs, you may need protection.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert S05.90XA to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About S05.90XAOverview
What is the ICD-10 code for unspecified injury of unspecified eye and orbit, initial encounter?
The ICD-10-CM code for unspecified injury of unspecified eye and orbit, initial encounter is S05.90XA (sometimes written as S0590XA). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
Is S05.90XA (Unspecified injury of unspecified eye and orbit) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report unspecified injury of unspecified eye and orbit, initial encounter on HIPAA-covered claims from October 1, 2026 through September 30, 2027.
What does the 7th character A in S05.90XA mean?
The final character A marks the initial encounter: use it while the patient is receiving active treatment for unspecified injury of unspecified eye and orbit, such as an emergency visit or first evaluation.
What MS-DRG does S05.90XA group to?
When unspecified injury of unspecified eye and orbit, initial encounter is the principal diagnosis on an inpatient stay, it groups to MS-DRG 964, 965, 125, 124, 963, with relative weights from 0.7699 to 2.6361 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of S05.90XA?
Under the General Equivalence Mappings, unspecified injury of unspecified eye and orbit, initial encounter converts to ICD-9-CM 871.9 (opn wound of eyeball NOS), 918.9 (superficial inj eye NEC), and 921.9 (contusion of eye NOS). The mapping is approximate, so confirm the match fits the documentation.
