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Diagnosis codes for PsA and PsO from the MHS internal coding system that correspond to relevant ICD-9 codes.
| Internal “Ycode" | Diagnosis description | ICD9 code | Modifier |
|---|---|---|---|
| Y16498 | PSORIASIS VULGARIS | 696 | 02 |
| Y16493 | PSORIASIS | 696 | 01 |
| Y16479 | PSORIASIS INVERSE | 696.1 | 05 |
| Y16492 | GUTTATE PSORIASIS | 696.1 | 04 |
| Y16496 | PSORIASIS PUSTULAR | 696.1 | 07 |
| Y16488 | ACRODERMATITIS CONTINUA OF HALLOPEAU | 696.1 | 02 |
| Y16487 | PSORIATIC ARTHROPATHY | 696.0 | 00 |
| Y23153 | PSORIATIC ARTHRITIS | 696.0 | 01 |
