2025 ICD-10-CM code Q98
(Active) Effective Date: N/A Revision Date: N/A Deletion Date: N/A Chromosomal abnormalities - Other sex chromosome abnormalities, male phenotype Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99) Feed
Other sex chromosome abnormalities resulting in a male phenotype, not otherwise specified.
Medical necessity is established by the presence of clinical symptoms or findings suggesting a sex chromosome abnormality requiring investigation and management.This includes ambiguous genitalia, delayed puberty, infertility, and other relevant clinical manifestations.
The clinical responsibility includes genetic testing, hormonal assessments, physical examination to evaluate secondary sex characteristics, and management of associated symptoms.Further specialist referral might be required based on specific findings.
- Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- Q90-Q99 (Chromosomal abnormalities, not elsewhere classified)
In simple words: This code describes unusual genetic conditions affecting sex chromosomes that result in a boy's physical appearance, but aren't easily classified into more precise categories.The condition is present from birth.
This ICD-10-CM code encompasses a variety of sex chromosome abnormalities that present with a male phenotype but do not fit into more specific categories.It includes conditions where there are atypical numbers or structures of sex chromosomes, leading to a male external appearance despite genetic variations.This is a broad category and requires further clinical specification for accurate diagnosis and treatment.
Example 1: A newborn male infant is found to have ambiguous genitalia.Genetic testing reveals a complex sex chromosome abnormality not fitting into a specific category, resulting in assignment of code Q98., A 16-year-old male patient presents with delayed puberty and small testes.Genetic analysis confirms a sex chromosome abnormality, consistent with Q98., A 30-year-old male presents with infertility.Further investigations reveal an unusual sex chromosome constitution not fully explained by known syndromes, ultimately coded as Q98.
Detailed clinical history, physical examination findings, genetic testing results (karyotype analysis), hormonal studies (testosterone levels, etc.), and any relevant imaging studies (ultrasound, etc.).
** This code is for use in reporting sex chromosome abnormalities with male phenotype that do not meet criteria for more specific codes.Always ensure proper documentation supporting the diagnosis to avoid coding inaccuracies.
- Payment Status: Active
- Specialties:Genetics, endocrinology, urology
- Place of Service:Office, hospital (inpatient or outpatient), genetics clinic