Q93.1 WHOLE CHROMOSOME MONOSOMY, MOSAIC (MITOTIC NONDISJUNCTION)

Code Information

  • Diagnosis Code: Q93.1
  • Short Description: Whole chromosome monosomy, mosaic (mitotic nondisjunction)
  • Long Description: Whole chromosome monosomy, mosaicism (mitotic nondisjunction)
  • Code Version: 2025 ICD-10-CM

The code Q93.1 is VALID for claim submission

Code Classification

Synonyms

  • Monosomy 21, mosaicism
  • Whole chromosome monosomy - mitotic nondisjunction mosaicism

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
Q93.1 Right Arrow 758.5 Autosomal anomalies NEC
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
Q93 Monosomies and deletions from the autosomes, not elsewhere classified
Q93.0 Whole chromosome monosomy, nonmosaicism (meiotic nondisjunction)
Q93.2 Chromosome replaced with ring, dicentric or isochromosome
Q93.3 Deletion of short arm of chromosome 4
Q93.4 Deletion of short arm of chromosome 5
Q93.5 Other deletions of part of a chromosome
Q93.51 Angelman syndrome
Q93.52 Phelan-McDermid syndrome
Q93.59 Other deletions of part of a chromosome
Q93.7 Deletions with other complex rearrangements
Q93.8 Other deletions from the autosomes
Q93.81 Velo-cardio-facial syndrome
Q93.82 Williams syndrome
Q93.88 Other microdeletions
Q93.89 Other deletions from the autosomes
Q93.9 Deletion from autosomes, unspecified
This page was last updated on: 10/1/2025
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