All ICD10 Codes

Q99.818

Billable
ChapterQ00–Q99
Ranksubcategory
Official Description

Other Usher syndrome

Metadata & Insights
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 17: Congenital Malformations, Deformations and Chromosomal Abnormalities (Q00-Q99).

Instructional Notes

Includes
  • Usher syndrome, type 4
General instructions are available for the parent sections:
View CH17 NotesView Q90-Q99 NotesView Q99.81 Notes

Clinical Hierarchy

BillableHas subcodes
CH17Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)
Q90-Q99Chromosomal abnormalities, not elsewhere classified (Q90-Q99)
Q99Other chromosome abnormalities, not elsewhere classified
Q99.8Other specified chromosome abnormalities
Q99.81Usher syndrome
Q99.818Other Usher syndromeBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to Q99.818:

subcategoryQ99.81
Usher syndrome
View context instructions
blockQ90-Q99
Chromosomal abnormalities, not elsewhere classified (Q90-Q99)
View context instructions
chapterCH17
Congenital malformations, deformations and chromosomal abnormalities (Q00-QA0)
View context instructions

Code History

  • FY 2025: This code replaced Q99.8 (Other specified chromosome abnormalities)

MS-DRG Classification

2026 v43.1

This code is grouped within the following Diagnosis Related Group(s) for clinical reimbursement:

DRG 564
Other Musculoskeletal System and Connective Tissue Diagnoses with MCC
DRG 565
Other Musculoskeletal System and Connective Tissue Diagnoses with CC
DRG 566
Other Musculoskeletal System and Connective Tissue Diagnoses without CC/MCC

Cross Reference

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