ICD-10-CM 2027
ICD-10 code for Myoadenylate deaminase deficiency
From the official ICD-10-CM alphabetic index entry “Deficiency, deficient › myoadenylate deaminase”. Page updated September 29, 2026.
About coding Myoadenylate deaminase deficiency
The ICD-10-CM code for Myoadenylate deaminase deficiency is E79.2 (Myoadenylate deaminase deficiency).
Within E79 (disorders of purine and pyrimidine metabolism), E79.2 is specifically for Myoadenylate deaminase deficiency. Related codes cover Hyperuricemia without signs of inflammatory arthritis and tophaceous disease (E79.0), Lesch-Nyhan syndrome (E79.1), other disorders of purine and pyrimidine metabolism (E79.8) and disorder of purine and pyrimidine metabolism, unspecified (E79.9).
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 642 (Inborn and Other Disorders of Metabolism, relative weight 1.3219), in MDC 10 (Endocrine, Nutritional and Metabolic Diseases and Disorders), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about Myoadenylate deaminase deficiency ICD-10 codes
What is the ICD-10 code for Myoadenylate deaminase deficiency?
- E79.2 — Myoadenylate deaminase deficiency.
Is E79.2 billable?
- Yes. E79.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can E79.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict E79.2 as a principal diagnosis.
Is E79.2 a CC or MCC?
- E79.2 is a CC (complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.