L87.1Reactive perforating collagenosis
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 XII
- Diseases of the skin and subcutaneous tissue
- Group L80-L99
- Other disorders of the skin and subcutaneous tissue
- Official Vietnamese name
- Bệnh tạo keo đục lỗ phản ứng [đào thải collagen biến đổi qua thượng bì]
Related L87 codes
L87
Transepidermal elimination disorders
L87.0
Primary diagnosis candidate
Keratosis follicularis et parafollicularis in cutem penetrans [Kyrle]
L87.2
Primary diagnosis candidate
Elastosis perforans serpiginosa
L87.8
Primary diagnosis candidate
Other transepidermal elimination disorders
L87.9
Primary diagnosis candidate
Transepidermal elimination disorder, 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.
