L88 — Pyoderma gangrenosum
L88 is a billable, specific ICD-10-CM code for pyoderma gangrenosum. It is valid for submission on a claim.
Excludes1 — never code together
These conditions cannot occur together. Billing both on the same encounter is a denial.
- dermatitis gangrenosa (L08.0)
Inclusion terms
Alternative wordings a physician may use in the chart for this same code.
- Phagedenic pyoderma
Other codes that can never be billed with L88
These codes carry an Excludes1 note pointing at L88. The conflict binds both ways, but ICD-10-CM only writes it down on one side — so you would not find this by reading L88 alone.
Risk adjustment
L88 risk-adjusts. Under the CMS-HCC V28 model it maps to this category:
- HCC 387 Pemphigus, Pemphigoid, and Other Specified Autoimmune Skin Disorders0.406 RAF
Coefficient shown for the Community Non-dual Aged segment. A higher HCC in the same hierarchy will suppress this one, so capturing it does not always add score.
Medicare coverage
L88 is named in 5 Medicare coverage policies — 5 listing it as supporting medical necessity. Which of them applies to you depends on your Medicare contractor, and coverage genuinely differs by state.
- A52423Billing and Coding: Infliximab and biosimilars
- A55909Billing and Coding: Wound Care
- A56459Billing and Coding: Debridement Services
- A56459Billing and Coding: Debridement Services
How L88 is indexed
Coders do not find codes by browsing the tabular list — they look them up in the alphabetic index, under the word the physician wrote. These are the index entries that lead here, so you can see which chart wordings map to L88.
- Phagedena›geometric
- Pyoderma, pyodermia›gangrenosum
- Pyoderma, pyodermia›phagedenic
Questions about L88
- Is L88 a billable ICD-10-CM code?
- Yes. L88 is a billable, specific ICD-10-CM code and is valid for submission on a claim.
- Where does L88 sit in the tabular list?
- Diseases of the skin and subcutaneous tissue (L00-L99), in the block Other disorders of the skin and subcutaneous tissue (L80-L99).
- What cannot be coded together with L88?
- L88 carries an Excludes1 note, which means the conditions it lists can never be coded together with it on the same encounter.