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ICD-10-CM 2027 diagnosis code

QA0.011Neurodevelopmental disorders, related to pathogenic variants in glutamate receptor genes

✓ Billable / specificPOA exemptCC — complication/comorbidity

QA0.011 is a valid, billable ICD-10-CM code for neurodevelopmental disorders, related to pathogenic variants in glutamate receptor genes. It can be reported on claims for dates of service from October 1, 2026 – September 30, 2027.Short description: Neurodev disord, rel to patho var in glutamate recept genes

Code last changed in FY2026 (effective October 1, 2025). Source: official FY2027 ICD-10-CM release from CDC/NCHS and CMS. Page updated September 29, 2026. About our data

About QA0.011

QA0.011 is the ICD-10-CM diagnosis code for neurodevelopmental disorders, related to pathogenic variants in glutamate receptor genes. It belongs to category QA0 (neurodevelopmental disorders related to specific genetic pathogenic variants), block QA0-QA1 (genetic disorders, not elsewhere classified) and chapter 17 (congenital malformations, deformations, chromosomal abnormalities, and genetic disorders). It is billable, so it can be reported on its own for dates of service from October 1, 2026 through September 30, 2027.

Within QA0.01 (neurodevelopmental disorders related to pathogenic variants in certain specific genes), QA0.011 is specifically for neurodevelopmental disorders, related to pathogenic variants in glutamate receptor genes. Related codes cover pathogenic variants in ion channel genes (QA0.010), pathogenic variants in other receptor genes (QA0.012), pathogenic variants in other transporter and solute carrier genes (QA0.013), pathogenic variants in synapse related genes (QA0.014) and genes associated with transcription and gene expression (QA0.015).

As a secondary diagnosis it is a CC (complication or comorbidity), which can move an inpatient stay into the "with CC" MS-DRG of its family, unless the principal diagnosis excludes it.

In MS-DRG v44.0, it is part of the grouping logic for DRG 564 (Other Musculoskeletal System and Connective Tissue Diagnoses with MCC, relative weight 1.4908), DRG 565 (Other Musculoskeletal System and Connective Tissue Diagnoses with CC, relative weight 0.9783) and DRG 566 (Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCC, relative weight 0.7378), in MDC 08 (Diseases and Disorders of the Musculoskeletal System and Connective Tissue), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.

It is exempt from present-on-admission (POA) reporting, so no POA indicator is required.

It was added in FY2026, effective October 1, 2025.

Notes that apply from higher levels

Instructions written at a parent level also apply to QA0.011.

› From QA0 Neurodevelopmental disorders related to specific genetic pathogenic variants
Code also
  • , if applicable, any associated conditions, such as:
  • attention-deficit hyperactivity disorders (F90.-)
  • autism spectrum disorder (F84.0)
  • developmental and epileptic encephalopathy (G93.45)
  • epilepsy, by specific type (G40.-)
  • intellectual disabilities (F70-F79)
  • pervasive developmental disorders (F84.-)

Broader instructions also apply from Chapter 17: Congenital malformations, deformations, chromosomal abnormalities, and genetic disorders.

Alphabetic index entries

10 entries

Terms in the official ICD-10-CM index that lead to QA0.011.

MS-DRG v44.0 grouping

All DRGs →

Inpatient MS-DRGs this diagnosis can group to, as the principal or a secondary diagnosis, depending on the rest of the claim.

Code history

  1. 2016
  2. 2017
  3. 2018
  4. 2019
  5. 2020
  6. 2021
  7. 2022
  8. 2023
  9. 2024
  10. 2025
  11. 2026
  12. 2027
  • FY2026 (effective 10/1/2025): Added
  • No changes since FY2026.

Common questions about QA0.011

Is QA0.011 billable?

Yes. QA0.011 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).

Can QA0.011 be used as a principal diagnosis?

Yes. The Medicare Code Editor doesn't restrict QA0.011 as a principal diagnosis.

Is QA0.011 a CC or MCC?

QA0.011 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.

What DRG does QA0.011 group to?

QA0.011 is used in the MS-DRG v44.0 logic for MS-DRG 564 (Other Musculoskeletal System and Connective Tissue Diagnoses with MCC), MS-DRG 565 (Other Musculoskeletal System and Connective Tissue Diagnoses with CC) and MS-DRG 566 (Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCC). Which one applies depends on whether it is the principal diagnosis and on the rest of the claim.