What is ICD-9
ICD – International Classification of Diseases. 9 – Ninth Revision. This classification was developed by World Health Organization. In this classification for each known disease assigned unique code number. Majority of the U.S. healthcare systems use the ICD-9 codes for making diagnosis and settling payments. The coding is standard around the world, however, in the 2010’s many countries went on to use ICD-10 and then ICD – 11 systems, which include more information.
ICD-9 for Psoriasis
Psoriasis falls under “Other inflammatory conditions of skin and subcutaneous tissue”, which is between codes 690 and 698. The disease itself has a code 696 (Psoriasis and similar disorders), which is divided into the sub-codes:
| ICD-9 Code | Disorders |
|---|---|
| 696.0 | Psoriatic arthropathy |
| 696.1 | Other psoriasis |
| 696.2 | Parapsoriasis |
| 696.8 | Other psoriasis and similar disorders |
ICD-10 for Psoriasis
As opposed to ICD – 9, which has only point 696.1 for psoriasis and similar disorders, ICD – 10 has an L40 subdivision to describe the various types of psoriasis.
| ICD-10 Code | Disorders |
|---|---|
| L40 | Psoriasis |
| L40.0 | Psoriasis vulgaris |
| L40.1 | Generalized pustular psoriasis |
| L40.2 | Acrodermatitis continua |
| L40.3 | Pustulosis palmaris et plantaris |
| L40.4 | Guttate psoriasis |
| L40.5 | Arthropathic psoriasis |
| L40.50 | unspecified |
| L40.51 | Distal interphalangeal psoriatic arthropathy |
| L40.52 | Psoriatic arthritis mutilans |
| L40.53 | Psoriatic spondylitis |
| L40.54 | Psoriatic juvenile arthropathy |
| L40.59 | Other psoriatic arthropathy |
| L40.8 | Other psoriasis |
| L40.9 | Psoriasis, unspecified |
ICD-11 is currently in the draft stage.
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