E23.3

Billable

Hypothalamic dysfunction, not elsewhere classified

HCC Category Mapping

V24HCC 23 — Other Significant Endocrine and Metabolic Disorders

0.230

ESRDHCC 23 — Other Significant Endocrine and Metabolic Disorders

0.000

RxHCCHCC 43 — Other Significant Endocrine and Metabolic Disorders

0.000

What This Code Means

A condition where the hypothalamus (a part of the brain that controls hormones) is not functioning properly, and the cause is not specified elsewhere in the classification system.

Coding Tips

•Use this code only when the hypothalamic dysfunction cannot be attributed to a more specific condition
•Review documentation for any identifiable cause before assigning this unspecified code

Clinical Significance

Hypothalamic dysfunction not elsewhere classified encompasses disorders of the hypothalamus that disrupt hormonal regulation, temperature control, appetite, and circadian rhythms. The hypothalamus serves as the master regulator connecting the nervous and endocrine systems, so dysfunction can have wide-ranging systemic effects.

Documentation Requirements

✓Document the specific type of hypothalamic dysfunction, underlying etiology (tumor, inflammation, trauma, congenital), affected regulatory functions (temperature, appetite, sleep-wake cycle, hormone release), diagnostic workup results, and management approach.

Excludes 1 — Do NOT code together

Prader-Willi syndrome (Q87.11)
Russell-Silver syndrome (Q87.19)

Commonly Confused Codes

E23.0 (hypopituitarism when the pituitary itself is the problem), E23.6 (other pituitary disorders), G47.x (sleep disorders that may result from hypothalamic dysfunction but have separate codes).

Code Hierarchy

└E23Hypofunction and other disorders of the pituitary gland └E23.3Hypothalamic dysfunction, not elsewhere classified

└E23.3Hypothalamic dysfunction, not elsewhere classified