NPI Atlas

H05.312 – Atrophy of left orbit

ICD-10-CM 2027 diagnosis code · Disorders of eyelid, lacrimal system and orbit

Billable code

ICD-10-CM code H05.312

Code: H05.312 (claims format: H05312)
Description: Atrophy of left orbit
Billable: Yes – valid for HIPAA-covered transactions
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 › H05.3 › H05.31

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)

H05.3 – Deformity of orbit

Excludes1 (not coded here):

congenital deformity of orbit (Q10.7)
hypertelorism (Q75.2)

Block H00-H05

Excludes2 (not included here):

open wound of eyelid (S01.1-)
superficial injury of eyelid (S00.1-, S00.2-)

Related codes in H05.31

H05.311 – Atrophy of right orbitBillable
H05.313 – Atrophy of bilateral orbitBillable
H05.319 – Atrophy of unspecified orbitBillable

Frequently asked questions

What is ICD-10 code H05.312?

H05.312 is the ICD-10-CM code for atrophy of left orbit, in the block H00-H05 (Disorders of eyelid, lacrimal system and orbit).

Is H05.312 a billable code?

Yes. H05.312 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.

What category does H05.312 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.