Search Browse Crosswalk Fees Tools Pricing

Codelle

AI-powered medical coding assistant for healthcare practices and billers.

Pricing Privacy Terms

© 2026 Codelle. All rights reserved.

CPT® copyright 2026 American Medical Association. All rights reserved. CPT is a registered trademark of the American Medical Association. Applicable FARS/DFARS restrictions apply to government use. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use.

ICD-10-CM T40.996 — Underdosing of other psychody… | Codelle

ICD-10-CM/T40.99/T40.996

T40.996

ICD-10-CM

Underdosing of other psychodysleptics [hallucinogens]

Code Hierarchy

▲T40.99Psychodysleptics

T40.996(current)

Subcodes (3)

T40.996AUnderdosing of other psychodysleptics, initial encounter

T40.996DUnderdosing of other psychodysleptics, subsequent encounter

T40.996SUnderdosing of other psychodysleptics, sequela

Same Category

T40Narcotics and psychodysleptics T40.0Poisoning by, adverse effect of and underdosing of opium T40.0XPoisoning by, adverse effect of and underdosing of opium T40.0X1Poisoning by opium, accidental (unintentional)T40.0X1APoisoning by opium, accidental (unintentional), init encntr T40.0X1DPoisoning by opium, accidental (unintentional), subs encntr T40.0X1SPoisoning by opium, accidental (unintentional), sequela T40.0X2Poisoning by opium, intentional self-harm T40.0X2APoisoning by opium, intentional self-harm, initial encounter T40.0X2DPoisoning by opium, intentional self-harm, subs encntr

+5 more in this category