G51.2Melkersson syndrome
Code usage status
Primary diagnosis
May be used 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 VI
- Diseases of the nervous system
- Group G50-G59
- Nerve, nerve root and plexus disorders
- Official Vietnamese name
- Hội chứng Melkersson
- Additional WHO coding guidance
- Melkersson-Rosenthal syndrome
Related G51 codes
G51
Facial nerve disorders
G51.0
Primary diagnosis candidate
Bell's palsy
G51.1
Primary diagnosis candidate
Geniculate ganglionitis
G51.3
Primary diagnosis candidate
Clonic hemifacial spasm
G51.4
Primary diagnosis candidate
Facial myokymia
G51.8
Primary diagnosis candidate
Other disorders of facial nerve
G51.9
Primary diagnosis candidate
Disorder of facial nerve, unspecified
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.
