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Diagnosis Code

Q98.8 OTHER SPECIFIED SEX CHROMOSOME ABNORMALITIES, MALE PHENOTYPE


Code Information

Diagnosis Code: Q98.8

Short Description: Other specified sex chromosome abnormalities, male phenotype

Long Description: Other specified sex chromosome abnormalities, male phenotype

The code Q98.8 is VALID for claim submission

Code Classification:

  • Congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
    • Chromosomal abnormalities, not elsewhere classified (Q90-Q99)
      • Oth sex chromosome abnormalities, male phenotype, NEC (Q98)
        • Q98.8 Other specified sex chromosome abnormalities, male phenotype

This code is valid for diagnoses for males only

Code Version: 2022 ICD-10-CM


Synonyms

  • 48,XYYY syndrome
  • 49,XYYYY syndrome
  • Absence of sex chromosome
  • Distal Xq28 microduplication syndrome
  • Familial infantile gigantism
  • Gigantism
  • Hypersomatotropic gigantism
  • Sex chromosome aneuploidy
  • Sex chromosome aneuploidy
  • Sex phenotype-karyotype dissociation syndrome
  • X-linked acrogigantism due to Xq26 microduplication
  • XXYY syndrome

Diagnostic Related Group(s)

The code Q98.8 is grouped in the following Diagnostic Related Group(s) (MS-DRG v39.0)
  • Other Male Reproductive System Diagnoses With Cc/mcc (729)
  • Other Male Reproductive System Diagnoses Without Cc/mcc (730)

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
Q98.8 Right Arrow 758.81 Oth cond due to sex chrm

This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
Q98 Other sex chromosome abnormalities, male phenotype, not elsewhere classified
Q98.0 Klinefelter syndrome karyotype 47, XXY
Q98.1 Klinefelter syndrome, male with more than two X chromosomes
Q98.3 Other male with 46, XX karyotype
Q98.4 Klinefelter syndrome, unspecified
Q98.5 Karyotype 47, XYY
Q98.6 Male with structurally abnormal sex chromosome
Q98.7 Male with sex chromosome mosaicism
Q98.9 Sex chromosome abnormality, male phenotype, unspecified

This page was last updated on: 10/1/2023

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