S05.42XA — Penetrating wound of orbit with or without foreign body, left eye, initial encounter
Is S05.42XA billable?
Yes — S05.42XA is billable for FY2027. S05.42XA is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. S05.42XA may be submitted for encounters from October 1, 2026 through September 30, 2027.
S05.42XA at a glance
| Code | S05.42XA |
|---|---|
| Description | Penetrating wound of orbit with or without foreign body, left eye, initial encounter |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
| 7th character "A" | initial encounter |
What does the 7th character "A" mean in S05.42XA?
In S05.42XA, the 7th character A means initial encounter. The 7th character is required for S05.42XA to be a valid, complete code.
Same condition, different episode of care — switch the 7th character:
Which MS-DRGs does S05.42XA group to?
S05.42XA sits in MDC 02 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 124Other Disorders of the Eye with MCC or Thrombolytic Agentmedical
- 125Other Disorders of the Eye without MCCmedical
As a secondary diagnosis, S05.42XA is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is S05.42XA listed in the Alphabetic Index?
The Alphabetic Index lists these routes under S05.4, the nearest indexed parent of S05.42XA. Use them to find the family, then select the specific code.
- Foreign body › ocular muscle
- Foreign body › orbit
- Puncture › orbit
- Injury › eye › orbit penetration
- Wound, open › ocular › orbit
Use additional code — inherited from Chapter 19
Report an additional code alongside S05.42XA to fully describe the condition. S05.42XA is sequenced first.
- code to identify any retained foreign body, if applicable (Z18.-)
Excludes2 — not included here — inherited from Chapter 19
The conditions below are not part of S05.42XA, but a patient may have both at the same time. When documentation supports it, S05.42XA and the excluded code may both be reported.
Excludes2 — not included here — inherited from S00-S09
The conditions below are not part of S05.42XA, but a patient may have both at the same time. When documentation supports it, S05.42XA and the excluded code may both 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)
Excludes2 — not included here — inherited from S05
The conditions below are not part of S05.42XA, but a patient may have both at the same time. When documentation supports it, S05.42XA and the excluded code may both be reported.
Excludes2 — not included here — inherited from S05.4
The conditions below are not part of S05.42XA, but a patient may have both at the same time. When documentation supports it, S05.42XA and the excluded code may both be reported.
- retained (old) foreign body following penetrating wound in orbit (H05.5-)
Code also — inherited from S00-S09
Two codes may be needed to describe the condition fully. Whether S05.42XA is sequenced first depends on the reason for the encounter.
- for any associated infection
How long has S05.42XA existed?
S05.42XA has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.