ICD-10 Specific code G12: Spinal muscular atrophy and related syndromes

Specific codes in ICD-10 are unique alphanumeric designations used to identify and categorize diseases, disorders, and conditions. They consist of 3-5 characters, including both letters and numbers, that provide a high level of detail and specificity.

Translations

Language Translation
Flag for English language  English Spinal muscular atrophy and related syndromes
Flag for French language  French Amyotrophie spinale et syndromes apparentรฉs

Hierarchical position

Level Code Title
1 VI Diseases of the nervous system
2 G10-G14 Systemic atrophies primarily affecting the central nervous system
3 G12 Spinal muscular atrophy and related syndromes

Contents

Code Title
G12.0 Infantile spinal muscular atrophy, type I [Werdnig-Hoffman]
G12.1 Other inherited spinal muscular atrophy
G12.2 Motor neuron disease
G12.8 Other spinal muscular atrophies and related syndromes
G12.9 Spinal muscular atrophy, unspecified

Indicated medicines

Active Ingredient Description
Nusinersen

Nusinersen is an antisense oligonucleotide (ASO) which increases the proportion of exon 7 inclusion in survival motor neuron 2 (SMN2) messenger ribonucleic acid (mRNA) transcripts by binding to an intronic splice silencing site (ISS-N1) found in intron 7 of the SMN2 pre-messenger ribonucleic acid (pre-mRNA) and hence when SMN2 mRNA is produced, it can be translated into the functional full length SMN protein. SMA is a progressive neuromuscular disease resulting from mutations in chromosome 5q in the SMN1 gene. Gene SMN2, located near SMN1, is responsible for a small amount of SMN protein production.

Risdiplam

Risdiplam is a survival of motor neuron 2 (SMN2) pre-mRNA splicing modifier designed to treat SMA caused by mutations of the SMN1 gene in chromosome 5q that lead to SMN protein deficiency. Functional SMN protein deficiency is directly linked to the SMA pathophysiology which includes progressive loss of motor neurons and muscle weakness. Risdiplam treats SMA by increasing and sustaining functional SMN protein levels.