H05.0 – Acute inflammation of orbit
ICD-10-CM 2027 diagnosis code · Disorders of eyelid, lacrimal system and orbit
ICD-10-CM code
H05.0
- Code
H05.0(claims format:H050)- Description
- Acute inflammation of orbit
- Billable
- No – use a more specific code below
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 7. Diseases of the eye and adnexa (H00-H59)
- Block
- H00-H05 Disorders of eyelid, lacrimal system and orbit
- Parent codes
- H05
Billable codes under H05.0
H05.0 is a header code and cannot be used on claims. Choose the most specific code:
- H05.00 – Unspecified acute inflammation of orbitBillable
- H05.01 – Cellulitis of orbitHeader (more codes below)
- H05.02 – Osteomyelitis of orbitHeader (more codes below)
- H05.03 – Periostitis of orbitHeader (more codes below)
- H05.04 – Tenonitis of orbitHeader (more codes below)
Notes inherited from parent codes
Instructional notes at a category or block level apply to every code below it.
H05 – Disorders of orbit
Excludes1 (not coded here):
- congenital malformation of orbit (Q10.7)
Block H00-H05
Related codes in H05
- H05.1 – Chronic inflammatory disorders of orbitHeader
- H05.2 – Exophthalmic conditionsHeader
- H05.3 – Deformity of orbitHeader
- H05.4 – EnophthalmosHeader
- H05.5 – Retained (old) foreign body following penetrating wound of orbitHeader
- H05.8 – Other disorders of orbitHeader
- H05.9 – Unspecified disorder of orbitBillable
Frequently asked questions
What is ICD-10 code H05.0?
H05.0 is the ICD-10-CM code for acute inflammation of orbit, in the block H00-H05 (Disorders of eyelid, lacrimal system and orbit).
Is H05.0 a billable code?
No. H05.0 is a header code with more specific child codes; report one of the billable codes listed above.
What category does H05.0 belong to?
It belongs to category H05 – Disorders of orbit.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.