Q87.40Billable
Marfan syndrome, unspecified
- Chapter
- 17. Congenital malformations, deformations and chromosomal abnormalities
- Category
- Q87
- Effective date
- October 1, 2026
Related codes in category Q87
Q87Oth congenital malform syndromes affecting multiple systemsQ87.0Congen malform syndromes predom affecting facial appearanceYesQ87.1Congenital malform syndromes predom assoc w short statureQ87.11Prader-Willi syndromeYesQ87.19Other congen malform synd predom assoc with short statureYesQ87.2Congenital malformation syndromes predom involving limbsYesQ87.3Congenital malformation syndromes involving early overgrowthYesQ87.4Marfan syndromeQ87.41Marfan syndrome with cardiovascular manifestationsQ87.410Marfan syndrome with aortic dilationYesQ87.418Marfan syndrome with other cardiovascular manifestationsYesQ87.42Marfan syndrome with ocular manifestationsYes
Frequently asked questions
What is ICD-10 code Q87.40?
Q87.40 is an ICD-10-CM diagnosis code for Marfan syndrome, unspecified.
Is Q87.40 a billable code?
Yes. Q87.40 is billable and specific enough to be used on a claim.
What ICD-10-CM chapter is Q87.40 in?
Q87.40 falls under Chapter 17: Congenital malformations, deformations and chromosomal abnormalities.
When did Q87.40 become effective?
Q87.40 has been effective since October 1, 2026, per the CMS/CDC ICD-10-CM annual release.
What other codes are related to Q87.40?
Q87.40 belongs to category Q87, which includes 12 other codes — see the related codes list on this page.
ICD-10-CM data maintained by CDC/CMS (public domain). Always verify codes with authoritative sources before making coding or billing decisions.