L88 — Pyoderma gangrenosum
Is L88 billable?
Yes — L88 is billable for FY2027. L88 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. L88 may be submitted for encounters from October 1, 2026 through September 30, 2027.
L88 at a glance
| Code | L88 |
|---|---|
| Description | Pyoderma gangrenosum |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does L88 group to?
L88 sits in MDC 09 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 602Cellulitis with MCCmedical
- 603Cellulitis without MCCmedical
As a secondary diagnosis, L88 is a complication or comorbidity (CC), which can move a stay into a higher-paying DRG.
How is L88 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to L88. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Phagedena › geometric (dry) (moist) (sloughing)
- Pyoderma, pyodermia › gangrenosum
- Pyoderma, pyodermia › phagedenic
Excludes1 — never code together
The conditions below can never be reported together with L88 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- dermatitis gangrenosa (L08.0)
Inclusion terms
Alternative wording in documentation that is classified to L88.
- Phagedenic pyoderma
Excludes2 — not included here — inherited from Chapter 12
The conditions below are not part of L88, but a patient may have both at the same time. When documentation supports it, L88 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- lipomelanotic reticulosis (I89.8)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- systemic connective tissue disorders (M30-M36)
- viral warts (B07.-)
How long has L88 existed?
L88 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with L88?
ICD-10-CM declares these codes mutually exclusive with L88 — exactly one of each pair can be correct for a given encounter.