Q82.2 ICD-10-CA code: Mastocytosis
Q82.2 is the ICD-10-CA code for “Mastocytosis” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
Q82.2Mastocytosis
ICD-10-CA · Canada · Also written Q822
Index terms
Entries in CIHI’s alphabetical index that lead to Q82.2. Searching the index by the condition the note names is how coders reach this code.
- Nettleship's syndrome
- Urticaria, pigmentosa
- Urticaria, xanthelasmoidea
Notes for Q82.2
As CIHI prints them, with any note Q82.2 takes from the headings above it.
Includes
- Urticaria pigmentosa
Excludes
Conditions classified elsewhere.
- Malignant mastocytosis (C96.2)
- Acrodermatitis enteropathica (E83.2)congenital erythropoietic porphyria (E80.0)pilonidal cyst or sinus (L05.-)Sturge-Weber(-Dimitri) syndrome (Q85.8)From Q82 Other congenital malformations of skin
- Inborn errors of metabolism (E70-E90)From Chapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
Where Q82.2 sits
- 1ChapterChapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- 2Block Q80-Q89Other congenital malformations
- 3Category Q82Other congenital malformations of skin
- 4Valid code Q82.2Mastocytosis
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code Q82.2 mean?
Q82.2 is the ICD-10-CA code for “Mastocytosis” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is Q82.2 in ICD-10-CA?
Q82.2 sits under Q82 Other congenital malformations of skin, within Q80-Q89 Other congenital malformations, within Chapter 17: Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99).
What coding notes apply to Q82.2?
ICD-10-CA lists Includes, Excludes notes for Q82.2, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.