E79

Disorders of purine and pyrimidine metabolism

Not billable — category only FY2026 2025-10-01 → 2026-09-30

Exclusions 18 never code together

E79code

Excludes1

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

E70-E88block

Excludes1

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

Excludes2

Ehlers-Danlos syndromes (Q79.6-)Q79.6-

E00-E89chapter

Excludes1

transitory endocrine and metabolic disorders specific to newborn (P70-P74)P70-P74

Excludes1 — never code together. The excluded condition and this one are mutually exclusive.

Excludes2 — not included here, but the patient may have both. Code both when documented.

Instructional notes 1

E00-E89chapter

Notes

All neoplasms, whether functionally active or not, are classified in Chapter 2. Appropriate codes in this chapter (i.e. E05.8, E07.0, E16-E31, E34.-) may be used as additional codes to indicate either functional activity by neoplasms and ectopic endocrine tissue or hyperfunction and hypofunction of endocrine glands associated with neoplasms and other conditions classified elsewhere.E05.8 E07.0 E16-E31 E34.-

Index entries leading here filed at null

No alphabetic index entry points at this code.

Subordinate codes 5

E79.0 Hyperuricemia w/o signs of inflam arthrit and tophaceous dis E79.1 Lesch-Nyhan syndrome E79.2 Myoadenylate deaminase deficiency E79.8 Other disorders of purine and pyrimidine metabolism E79.9 Disorder of purine and pyrimidine metabolism, unspecified

Medications 5

152 Calcium Metabolism Disorders drugs 41 Bipolar and Related Disorders drugs 10 Feeding and Eating Disorders drugs 65 Sleep Initiation and Maintenance Disorders drugs 19 Trauma and Stressor Related Disorders drugs

MED-RT files conditions by MeSH, which carves the world differently from ICD-10. These are name matches on this code's description, offered as candidates — not as an assertion that they are this code.

Additional references

AHA Coding Clinic® Licence required

Official coding advice for this code. Published by the American Hospital Association. Not included in this installation.

Risk adjustment

Maps to no condition category in any loaded model.

Presence is a property of the code. Untick a model to hide it everywhere.

This code

Billable: no
Code set: FY2026
Block: E70-E88
Subordinate: 5

Present FY2024–FY2027.