Laurence-Moon syndrome

This code represents Laurence-Moon syndrome, a rare, inherited neurodegenerative disorder characterized by intellectual disability, retinitis pigmentosa leading to blindness, spastic paraplegia, and hypogonadism. It is a distinct condition from Bardet-Biedl syndrome, though both share some phenotypic similarities.

Assign this code when documentation explicitly states a diagnosis of Laurence-Moon syndrome. Supporting documentation should detail the characteristic clinical features, such as progressive vision loss, neurological deficits, and endocrine abnormalities. This code is appropriate for both initial diagnoses and subsequent encounters for management of the syndrome.

• Differentiate carefully from Bardet-Biedl syndrome (Q87.83), as these are distinct genetic conditions despite overlapping features.
• Ensure the medical record clearly specifies "Laurence-Moon syndrome" to avoid confusion with other syndromic diagnoses.
• Code all associated manifestations and complications separately, such as specific types of intellectual disability or endocrine disorders, as secondary diagnoses.