| L40 | Psoriasis | NON-BILLABLE CODE |
| L40.1 | Generalized pustular psoriasis | BILLABLE CODE |
| L40.2 | Acrodermatitis continua | BILLABLE CODE |
| L40.3 | Pustulosis palmaris et plantaris | BILLABLE CODE |
| L40.4 | Guttate psoriasis | BILLABLE CODE |
| L40.5 | Arthropathic psoriasis | NON-BILLABLE CODE |
| L40.50 | Arthropathic psoriasis, unspecified | BILLABLE CODE |
| L40.51 | Distal interphalangeal psoriatic arthropathy | BILLABLE CODE |
| L40.52 | Psoriatic arthritis mutilans | BILLABLE CODE |
| L40.53 | Psoriatic spondylitis | BILLABLE CODE |
| L40.54 | Psoriatic juvenile arthropathy | BILLABLE CODE |
| L40.59 | Other psoriatic arthropathy | BILLABLE CODE |
| L40.8 | Other psoriasis | BILLABLE CODE |
| L40.9 | Psoriasis, unspecified | BILLABLE CODE |
