2021 ICD-10-CM Code Q97.2
Mosaicism, lines with various numbers of X chromosomes
Valid for Submission
Q97.2 is a billable diagnosis code used to specify a medical diagnosis of mosaicism, lines with various numbers of x chromosomes. The code Q97.2 is valid during the fiscal year 2021 from October 01, 2020 through September 30, 2021 for the submission of HIPAA-covered transactions.
The ICD-10-CM code Q97.2 might also be used to specify conditions or terms like mosaicism - lines with various numbers of x chromosomes or sex chromosome mosaicism. The code is exempt from present on admission (POA) reporting for inpatient admissions to general acute care hospitals.
The code Q97.2 is applicable to female patients only. It is clinically and virtually impossible to use this code on a non-female patient.
| ICD-10: | Q97.2 |
| Short Description: | Mosaicism, lines with various numbers of X chromosomes |
| Long Description: | Mosaicism, lines with various numbers of X chromosomes |
Code Classification
Index to Diseases and Injuries
The Index to Diseases and Injuries is an alphabetical listing of medical terms, with each term mapped to one or more ICD-10 code(s). The following references for the code Q97.2 are found in the index:
- - Sex
Code Edits
The Medicare Code Editor (MCE) detects and reports errors in the coding of claims data. The following ICD-10 Code Edits are applicable to this code:
- Diagnoses for females only - The Medicare Code Editor detects inconsistencies between a patient’s sex and any diagnosis on the patient’s record, these edits apply to FEMALES only .
Approximate Synonyms
The following clinical terms are approximate synonyms or lay terms that might be used to identify the correct diagnosis code:
- Mosaicism - lines with various numbers of X chromosomes
- Sex chromosome mosaicism
Diagnostic Related Groups - MS-DRG Mapping
The ICD-10 code Q97.2 is grouped in the following groups for version MS-DRG V38.0 What are Diagnostic Related Groups?
The Diagnostic Related Groups (DRGs) are a patient classification scheme which provides a means of relating the type of patients a hospital treats. The DRGs divides all possible principal diagnoses into mutually exclusive principal diagnosis areas referred to as Major Diagnostic Categories (MDC). applicable from 10/01/2020 through 09/30/2021.
Present on Admission (POA)
Q97.2 is exempt from POA reporting - The Present on Admission (POA) indicator is used for diagnosis codes included in claims involving inpatient admissions to general acute care hospitals. POA indicators must be reported to CMS on each claim to facilitate the grouping of diagnoses codes into the proper Diagnostic Related Groups (DRG). CMS publishes a listing of specific diagnosis codes that are exempt from the POA reporting requirement. Review other POA exempt codes here .
CMS POA Indicator Options and Definitions
| POA Indicator Code | POA Reason for Code | CMS will pay the CC/MCC DRG? |
|---|---|---|
| Y | Diagnosis was present at time of inpatient admission. | YES |
| N | Diagnosis was not present at time of inpatient admission. | NO |
| U | Documentation insufficient to determine if the condition was present at the time of inpatient admission. | NO |
| W | Clinically undetermined - unable to clinically determine whether the condition was present at the time of inpatient admission. | YES |
| 1 | Unreported/Not used - Exempt from POA reporting. | NO |
Convert Q97.2 to ICD-9 Code
The General Equivalency Mapping (GEM) crosswalk indicates an approximate mapping between the ICD-10 code Q97.2 its ICD-9 equivalent. The approximate mapping means there is not an exact match between the ICD-10 code and the ICD-9 code and the mapped code is not a precise representation of the original code.
- 758.81 - Oth cond due to sex chrm (Approximate Flag)
Information for Patients
Genetic Disorders
Genes are the building blocks of heredity. They are passed from parent to child. They hold DNA, the instructions for making proteins. Proteins do most of the work in cells. They move molecules from one place to another, build structures, break down toxins, and do many other maintenance jobs.
Sometimes there is a mutation, a change in a gene or genes. The mutation changes the gene's instructions for making a protein, so the protein does not work properly or is missing entirely. This can cause a medical condition called a genetic disorder.
You can inherit a gene mutation from one or both parents. A mutation can also happen during your lifetime.
There are three types of genetic disorders:
- Single-gene disorders, where a mutation affects one gene. Sickle cell anemia is an example.
- Chromosomal disorders, where chromosomes (or parts of chromosomes) are missing or changed. Chromosomes are the structures that hold our genes. Down syndrome is a chromosomal disorder.
- Complex disorders, where there are mutations in two or more genes. Often your lifestyle and environment also play a role. Colon cancer is an example.
Genetic tests on blood and other tissue can identify genetic disorders.
NIH: National Library of Medicine
- Genetics (Medical Encyclopedia)
[Learn More]
Code History
- FY 2021 - No Change, effective from 10/1/2020 through 9/30/2021
- FY 2020 - No Change, effective from 10/1/2019 through 9/30/2020
- FY 2019 - No Change, effective from 10/1/2018 through 9/30/2019
- FY 2018 - No Change, effective from 10/1/2017 through 9/30/2018
- FY 2017 - No Change, effective from 10/1/2016 through 9/30/2017
- FY 2016 - New Code, effective from 10/1/2015 through 9/30/2016 (First year ICD-10-CM implemented into the HIPAA code set)