All ICD10 Codes

R79.83

Billable
ChapterR00–R99
Ranksubcategory
Official Description

Abnormal findings of blood amino-acid level

Metadata & Insights
  • •Billable/specific code (valid for reimbursement).
  • •Chapter 18: Symptoms, Signs and Abnormal Clinical and Laboratory Findings (R00-R99).

Instructional Notes

Includes
  • Homocysteinemia
Excludes1(Not coded here. Use a different code.)
  • disorders of amino-acid metabolism (E70-E72)
General instructions are available for the parent sections:
View CH18 NotesView R70-R79 NotesView R79 Notes

Clinical Hierarchy

BillableHas subcodes
CH18Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
R70-R79Abnormal findings on examination of blood, without diagnosis (R70-R79)
R79Other abnormal findings of blood chemistry
R79.8Other specified abnormal findings of blood chemistry
R79.83Abnormal findings of blood amino-acid levelBillable

Applicable Ancestor Context

The following parent sections contain instructions or notes that apply to R79.83:

categoryR79
Other abnormal findings of blood chemistry
View context instructions
blockR70-R79
Abnormal findings on examination of blood, without diagnosis (R70-R79)
View context instructions
chapterCH18
Symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)
View context instructions

Code History

  • FY 2021: This code replaced R79.89 (Other specified abnormal findings of blood chemistry)

MS-DRG Classification

2026 v43.1

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

DRG 947
Signs and Symptoms with MCC
DRG 948
Signs and Symptoms without MCC

Cross Reference

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