ICD-10-CM 2027 diagnosis code

L13Other bullous disorders

Not billable — use a more specific code

L13 is a header code, so it can't be reported by itself. Choose one of the 4 more specific codes beneath it.

Code unchanged since ICD-10-CM took effect on October 1, 2015. Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About L13

L13 is the ICD-10-CM diagnosis code for other bullous disorders. It belongs to block L10-L14 (bullous disorders) and chapter 12 (diseases of the skin and subcutaneous tissue). It is a header code, so it can't be reported by itself; one of its 4 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: L13.0 (herpetiformis), L13.1 (dermatitis), L13.8 (disorders) and L13.9 (unspecified).

It has been part of ICD-10-CM since the code set took effect on October 1, 2015 and hasn't changed since.

Specific codes under L13

Notes that apply from higher levels

Instructions written at a parent level also apply to L13.

Broader instructions also apply from L10-L14 Bullous disorders and Chapter 12: Diseases of the skin and subcutaneous tissue.

Code history

2016
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2026
2027

FY2016 (effective 10/1/2015): Added (first year of ICD-10-CM)
No changes since FY2016.

Common questions about L13

Is L13 billable?: No. L13 is a header code. Report one of its more specific subcodes instead.