E63.0 Essential fatty acid [EFA] deficiency

Billable ICD-10-CM code, FY2026.

Applies from E63 Other nutritional deficiencies

Excludes2 (not included here)

• dehydration (E86.0)
• failure to thrive, adult (R62.7)
• failure to thrive, child (R62.51)
• feeding problems in newborn (P92.-)
• sequelae of malnutrition and other nutritional deficiencies (E64.-)

MS-DRG index

Defines the logic of DRG(s) 640-641 in MDC 10.

Approximate ICD-9-CM (GEMs)

• 269.8 Other nutritional deficiency (approximate)

Code annotations containing back-references to E63.0

Back-references to E63

• Code First: G63 Polyneuropathy in diseases classified elsewhere ("nutritional deficiency (E40-E64)")
• Type 1 Excludes: Z72.4 Inappropriate diet and eating habits ("malnutrition and other nutritional deficiencies (E40-E64)")

Diagnosis Index entries for E63.0

• Deficiency, deficient › essential fatty acid (EFA)

Nearby codes

• E63 Other nutritional deficiencies
• E63.0 Essential fatty acid [EFA] deficiency (this code)
• E63.1 Imbalance of constituents of food intake
• E63.8 Other specified nutritional deficiencies
• E63.9 Nutritional deficiency, unspecified