Q93
Monosomies and deletions from the autosomes, not elsewhere classified
Q93 is a non-billable ICD-10-CM code category for monosomies and deletions from the autosomes, not elsewhere classified. Report a more specific code from it instead. It is part of the FY2027 code set, effective October 1, 2026. The more specific codes under it are Q93.0 Whole chromosome monosomy, nonmosaicism (meiotic nondisjunction); Q93.1 Whole chromosome monosomy, mosaicism (mitotic nondisjunction); Q93.2 Chromosome replaced with ring, dicentric or isochromosome; Q93.3 Deletion of short arm of chromosome 4 and 5 more. Its coding notes include 2 Excludes2 entries.
Guidelines tip
From the FY2027 Official Guidelines. ICD10Ref adds no rules of its own.
Chapter 17 codes can be used for life. Manifestations that are an inherent part of a specifically coded anomaly are not coded separately. A corrected malformation is reported with a personal history code.
Excludes2
Not included here. Both codes may be reported if the patient has both conditions.
Also from chapter/block level (2 notes)
- mitochondrial metabolic disorders (E88.4-)
- inborn errors of metabolism (E70-E88)
Notes
Also from chapter/block level (1 note)
- Codes from this chapter are not for use on maternal records
More specific codes under Q93 9
- Q93.0Whole chromosome monosomy, nonmosaicism (meiotic nondisjunction)Billable
- Q93.1Whole chromosome monosomy, mosaicism (mitotic nondisjunction)Billable
- Q93.2Chromosome replaced with ring, dicentric or isochromosomeBillable
- Q93.3Deletion of short arm of chromosome 4Billable
- Q93.4Deletion of short arm of chromosome 5Billable
- Q93.5Other deletions of part of a chromosomeHeader
- Q93.7Deletions with other complex rearrangementsBillable
- Q93.8Other deletions from the autosomesHeader
- Q93.9Deletion from autosomes, unspecifiedBillable