L55 vs X32

L55 (Sunburn) compared with X32 (Exposure to sunlight), from the official CMS tabular data. Both may be reported when both conditions are documented (Excludes2).

Can these codes be reported together?

Yes, when both are documented. X32 carries an Excludes2 note covering L55: “radiation-related disorders of the skin and subcutaneous tissue (L55-L59)”

Excludes2 marks distinct conditions — both may be reported when both are documented.

Side by side

	L55Sunburn	X32Exposure to sunlight
Billing status	Non-billable header Report instead: L55.0, L55.1, L55.2, L55.9	Non-billable header Report instead: X32.XXXA, X32.XXXD, X32.XXXS
Classification	L00-L99 — Diseases of the Skin and Subcutaneous Tissue (L00-L99)	V00-Y99 — External Causes of Morbidity (V00-Y99)
Definition	Sunburn is a non-billable ICD-10-CM category code (L55).	Exposure to sunlight is a non-billable ICD-10-CM category code (X32).
7th character	—	The appropriate 7th character is to be added to code X32

Edit this comparison Check a whole claim

Derived from the official CMS ICD-10-CM tabular data (FY2026). Not billing advice; verify sequencing rules for the encounter. All data sources