E16.A1 Hypoglycemia level 1

Billable ICD-10-CM code, FY2026.

Applicable to

• Decreased blood glucose level 1

MS-DRG index

Defines the logic of DRG(s) 643-645 in MDC 10.

Code annotations containing back-references to E16.A1

Back-references to E16.A

• Use Additional: E08.64 Diabetes mellitus due to underlying condition with hypoglycemia ("code for hypoglycemia level, if applicable (E16.A-)")
• Use Additional: E09.64 Drug or chemical induced diabetes mellitus with hypoglycemia ("code for hypoglycemia level, if applicable (E16.A-)")
• Use Additional: E10.64 Type 1 diabetes mellitus with hypoglycemia ("code for hypoglycemia level, if applicable (E16.A-)")
• Use Additional: E11.64 Type 2 diabetes mellitus with hypoglycemia ("code for hypoglycemia level, if applicable (E16.A-)")
• Use Additional: E13.64 Other specified diabetes mellitus with hypoglycemia ("code for hypoglycemia level, if applicable (E16.A-)")
• Use Additional: E16.0 Drug-induced hypoglycemia without coma ("code for hypoglycemia level, if applicable (E16.A-)")
• Use Additional: E16.1 Other hypoglycemia ("code for hypoglycemia level, if applicable (E16.A-)")
• Use Additional: E16.2 Hypoglycemia, unspecified ("code for hypoglycemia level, if applicable (E16.A-)")

Back-references to E16

• Code First: G63 Polyneuropathy in diseases classified elsewhere ("endocrine disease, except diabetes (E00-E07, E15-E16, E20-E34)")

Diagnosis Index entries for E16.A1

• Decrease (d) › blood › glucose › level 1
• Hypoglycemia (spontaneous) › level › 1

Nearby codes

• E16.3 Increased secretion of glucagon
• E16.4 Increased secretion of gastrin
• E16.8 Other specified disorders of pancreatic internal secretion
• E16.9 Disorder of pancreatic internal secretion, unspecified
• E16.A Hypoglycemia level
• E16.A1 Hypoglycemia level 1 (this code)
• E16.A2 Hypoglycemia level 2
• E16.A3 Hypoglycemia level 3