L40-L45 — Papulosquamous disorders
ICD-10-CM codes L40-L45 cover papulosquamous disorders, within diseases of the skin and subcutaneous tissue. The block holds 40 codes across 6 categories, of which 35 are billable and 5 are header codes that cannot be submitted on a claim.
Risk adjustment in L40-L45
0 codes in this block map to a CMS-HCC, which means the diagnosis carries a risk-adjustment payment when it is documented and coded. Under-coding here is money left on the table; over-coding here is what audits are for.
- HCC 93 Rheumatoid Arthritis and Other Specified Inflammatory Rheumatic Disorders
What else to watch in L40-L45
- 18 codes are named in Medicare coverage policies. An LCD or NCD lists them as supporting medical necessity, or explicitly as not supporting it. Which applies depends on the MAC for your state.