VITiếng Việt
ICD-10 Vietnam

H54.9Unspecified visual impairment (binocular)

Code usage status

Primary diagnosis

Not recommended as the primary diagnosis

Apply only when it matches the confirmed diagnosis and the documented clinical record.

Specificity

Complete code in the classification

Use when the diagnosis matches and no exclusion applies.

Chapter VII
Diseases of the eye and adnexa
Group H53-H54
Visual disturbances and blindness
Official Vietnamese name
Thị lực giảm mức độ không xác định (hai mắt)
Additional WHO coding guidance
Visual impairment category 9. The table below gives a classification of severity of visual impairment recommended by the Resolution of the International Council of Ophthalmology (2002) and the Recommendations of the WHO Consultation on “Development of Standards for Characterization of Vision Loss and Visual Functioning" (September 2003) For characterizing visual impairment for codes H54.0 to H54.3, visual acuity should be measured with both eyes open with presenting correction if any. For characterizing visual impairment for codes H54.4 to H54.6, visual acuity should be measured monocularly with presenting correction if any. If the extent of the

Related H54 codes

H54 Visual impairment including blindness (binocular or monocular) H54.0 Blindness, binocular Visual impairment H54.1 Severe visual impairment, binocular H54.2 Moderate visual impairment, binocular H54.3 Mild or no visual impairment, binocular H54.4 Blindness, monocular H54.5 Severe visual impairment, monocular H54.6 Moderate visual impairment, monocular

Clinical record checklist

View coding guide →
  • Confirm that the code matches the final documented diagnosis.
  • Use one primary-diagnosis code and record only relevant additional conditions.
  • Review Ministry indicators, inclusions, exclusions and notes.
  • Do not infer a diagnosis beyond the clinical record.

2026 regulatory basis

Indicators are taken from columns 24–29 of the classification accompanying Circular 06/2026/TT-BYT, cross-referenced with Decision 1849/QĐ-BYT and Official Dispatch 4059/BYT-BH.