ICD-10-CM 2027 diagnosis code

Q80Congenital ichthyosis

Not billable — use a more specific code

Q80 is a header code, so it can't be reported by itself. Choose one of the 7 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 Q80

Q80 is the ICD-10-CM diagnosis code for congenital ichthyosis. It belongs to block Q80-Q89 (other congenital malformations) and chapter 17 (congenital malformations, deformations, chromosomal abnormalities, and genetic disorders). It is a header code, so it can't be reported by itself; one of its 7 subcodes must be used instead.

To report this condition, pick the subcode that matches the documentation: Q80.0 (vulgaris), Q80.1 (ichthyosis), Q80.2 (ichthyosis), Q80.3 (erythroderma), Q80.4 (fetus), Q80.8 (ichthyosis) and Q80.9 (unspecified).

Don't report Q80 together with the conditions in its Excludes1 note: Refsum's disease (G60.1).

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 Q80

Coding notes

Excludes1Not coded here — never report together with this code

Refsum's disease (G60.1)

Notes that apply from higher levels

Instructions written at a parent level also apply to Q80.

Broader instructions also apply from Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders.

Codes whose notes reference Q80

L85.0Excludes1
P83Excludes1

Code history

2016
2017
2018
2019
2020
2021
2022
2023
2024
2025
2026
2027

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

Common questions about Q80

Is Q80 billable?: No. Q80 is a header code. Report one of its more specific subcodes instead.