L43.3 Subacute (active) lichen planus

Billable ICD-10-CM code, FY2026.

Applicable to

• Lichen planus tropicus

Applies from L43 Lichen planus

Excludes1 (never code together)

• lichen planopilaris (L66.1-)

MS-DRG index

Defines the logic of DRG(s) 606-607 in MDC 09.

Approximate ICD-9-CM (GEMs)

• 697.0 Lichen planus (approximate)

Diagnosis Index entries for L43.3

• Lichen › planus (chronicus) › subacute (active)
• Lichen › planus (chronicus) › tropicus

Nearby codes

• L43 Lichen planus
• L43.0 Hypertrophic lichen planus
• L43.1 Bullous lichen planus
• L43.2 Lichenoid drug reaction
• L43.3 Subacute (active) lichen planus (this code)
• L43.8 Other lichen planus
• L43.9 Lichen planus, unspecified