E79 – Disorders of purine and pyrimidine metabolism

ICD-10-CM 2027 diagnosis code · Metabolic disorders

Non-billable header

ICD-10-CM code E79

Code: E79 (claims format: E79)
Description: Disorders of purine and pyrimidine metabolism
Billable: No – use a more specific code below
Valid for: Dates of service October 1, 2026 – September 30, 2027 (FY2027)
Chapter: 4. Endocrine, nutritional and metabolic diseases (E00-E89)
Block: E70-E88 Metabolic disorders

Billable codes under E79

E79 is a header code and cannot be used on claims. Choose the most specific code:

E79.0 – Hyperuricemia without signs of inflammatory arthritis and tophaceous diseaseBillable
E79.1 – Lesch-Nyhan syndromeBillable
E79.2 – Myoadenylate deaminase deficiencyBillable
E79.8 – Other disorders of purine and pyrimidine metabolismHeader (more codes below)
E79.9 – Disorder of purine and pyrimidine metabolism, unspecifiedBillable

Notes for E79

Excludes1 (not coded here):

Ataxia-telangiectasia (Q87.19)
Bloom's syndrome (Q82.8)
Cockayne's syndrome (Q87.19)
calculus of kidney (N20.0)
combined immunodeficiency disorders (D81.-)
Fanconi's anemia (D61.09)
gout (M1A.-, M10.-)
orotaciduric anemia (D53.0)
progeria (E34.8)
Werner's syndrome (E34.8)
xeroderma pigmentosum (Q82.1)

Notes inherited from parent codes

Instructional notes at a category or block level apply to every code below it.

Block E70-E88

Excludes1 (not coded here):

androgen insensitivity syndrome (E34.5-)
congenital adrenal hyperplasia (E25.0)
hemolytic anemias attributable to enzyme disorders (D55.-)
Marfan syndrome (Q87.4-)
5-alpha-reductase deficiency (E29.1)

Excludes2 (not included here):

Ehlers-Danlos syndromes (Q79.6-)

Frequently asked questions

What is ICD-10 code E79?

E79 is the ICD-10-CM code for disorders of purine and pyrimidine metabolism, in the block E70-E88 (Metabolic disorders).

Is E79 a billable code?

No. E79 is a header code with more specific child codes; report one of the billable codes listed above.

Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.