H05.421 Enophthalmos due to trauma or surgery, right eye

The ICD-10-CM code for Enophthalmos due to trauma or surgery, right eye is H05.421 (FY2026). It is a billable, claim-ready diagnosis code.

Classification

Chapter

7: Diseases of the eye and adnexa (H00-H59)

Section

H00-H05: Disorders of eyelid, lacrimal system and orbit (H00-H05)

Category H05

133 codes (102 billable)

FY2026 Status

Stable since FY2024

U.S. Hospital Utilization

• An estimated 80 U.S. inpatient stays in 2023 included H05.421 among the documented diagnoses.

Source: National Inpatient Sample (NIS), Healthcare Cost and Utilization Project (HCUP), Agency for Healthcare Research and Quality, 2016–2023. National survey-weighted estimates.

Official Coding Guidelines

Glaucoma (TOC entry)

a. Glaucoma .............................................................................................................................. 48

Assigning glaucoma codes (use as many H40 codes as needed)

Assign as many codes from category H40, Glaucoma, as needed to identify the type of glaucoma, the affected eye, and the glaucoma stage.

Source: CMS — ICD-10-CM Official Guidelines for Coding and Reporting, FY2026

References

• CMS — ICD-10-CM Official Code Set and Guidelines, FY2026
• CDC/NCHS — ICD-10-CM Files and Browser Tool
• AHRQ — HCUP National Inpatient Sample, Frequencies by Diagnosis Code (2016–2023)

Cite This Page

Reference H05.421 with the canonical source and edition:

H05.421 — Enophthalmos due to trauma or surgery, right eye. ICD-10 Coding Pro (ICD-10-CM FY2026). https://icd10codingpro.com/codes/H05.421

Canonical URL: https://icd10codingpro.com/codes/H05.421