ICD-9-CM Vol. 1 Diagnostic Codes

6. DISEASES OF THE NERVOUS SYSTEM AND SENSE ORGANS (320-389)

section notes

320.0	‑	326	INFLAMMATORY DISEASES OF THE CENTRAL NERVOUS SYSTEM (320-326)
330.0	‑	337.9	HEREDITARY AND DEGENERATIVE DISEASES OF THE CENTRAL NERVOUS SYSTEM (330-337)
338.0	‑	338.4	PAIN (338)
327.00	‑	327.8	ORGANIC SLEEP DISORDERS (327)
339.00	‑	339.89	OTHER HEADACHE SYNDROMES (339)
340	‑	349.9	OTHER DISORDERS OF THE CENTRAL NERVOUS SYSTEM (340-349)
350.1	‑	359.9	DISORDERS OF THE PERIPHERAL NERVOUS SYSTEM (350-359)
360.00	‑	379.99	DISORDERS OF THE EYE AND ADNEXA (360-379)
380.00	‑	389.9	DISEASES OF THE EAR AND MASTOID PROCESS (380-389)

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