ICD-10 Code for Hypersomnia
Also indexed as (organic)
The ICD-10-CM code for hypersomnia is G47.10 — Hypersomnia, unspecified. This is the code the Alphabetic Index gives for hypersomnia with no further qualifier, valid for FY2027 (October 1, 2026 – September 30, 2027).
BillableUnspecified
G47.10 is billable but unspecified. If the documentation names a type, site or cause, one of the more specific codes below is likely expected.
Which hypersomnia code should you use?
The Alphabetic Index lists 27 codes under Hypersomnia. Which one applies depends on the qualifier documented in the record — the type, site, cause, or associated condition. Find the qualifier below, then verify the code in the Tabular List before using it.
By type
| idiopathic | G47.11 | Idiopathic hypersomnia with long sleep time | |
| menstrual related | G47.13 | Recurrent hypersomnia | |
| nonorganic origin | F51.11 | Primary hypersomnia | |
| not due to a substance or known physiological condition | F51.11 | Primary hypersomnia | |
| primary | F51.11 | Primary hypersomnia | |
| recurrent | G47.13 | Recurrent hypersomnia | |
| specified NEC | G47.19 | Other hypersomnia |
Hypersomnia due to
| medical condition | G47.14 | Hypersomnia due to medical condition | |
| mental disorder | F51.13 | Hypersomnia due to other mental disorder | |
| alcohol › abuse | F10.182 | Alcohol abuse with alcohol-induced sleep disorder | |
| alcohol › dependence | F10.282 | Alcohol dependence with alcohol-induced sleep disorder | |
| alcohol › use | F10.982 | Alcohol use, unspecified with alcohol-induced sleep disorder | |
| amphetamines › abuse | F15.182 | Other stimulant abuse with stimulant-induced sleep disorder | |
| amphetamines › dependence | F15.282 | Other stimulant dependence with stimulant-induced sleep disorder | |
| amphetamines › use | F15.982 | Other stimulant use, unspecified with stimulant-induced sleep disorder | |
| caffeine › abuse | F15.182 | Other stimulant abuse with stimulant-induced sleep disorder | |
| caffeine › dependence | F15.282 | Other stimulant dependence with stimulant-induced sleep disorder | |
| caffeine › use | F15.982 | Other stimulant use, unspecified with stimulant-induced sleep disorder | |
| cocaine › abuse | F14.182 | Cocaine abuse with cocaine-induced sleep disorder | |
| cocaine › dependence | F14.282 | Cocaine dependence with cocaine-induced sleep disorder | |
| cocaine › use | F14.982 | Cocaine use, unspecified with cocaine-induced sleep disorder | |
| drug NEC › abuse | F19.182 | Other psychoactive substance abuse with psychoactive substance-induced sleep disorder | |
| drug NEC › dependence | F19.282 | Other psychoactive substance dependence with psychoactive substance-induced sleep disorder | |
| drug NEC › use | F19.982 | Other psychoactive substance use, unspecified with psychoactive substance-induced sleep disorder | |
| opioid › abuse | F11.182 | Opioid abuse with opioid-induced sleep disorder | |
| opioid › dependence | F11.282 | Opioid dependence with opioid-induced sleep disorder | |
| opioid › use | F11.982 | Opioid use, unspecified with opioid-induced sleep disorder | |
| psychoactive substance NEC › abuse | F19.182 | Other psychoactive substance abuse with psychoactive substance-induced sleep disorder | |
| psychoactive substance NEC › dependence | F19.282 | Other psychoactive substance dependence with psychoactive substance-induced sleep disorder | |
| psychoactive substance NEC › use | F19.982 | Other psychoactive substance use, unspecified with psychoactive substance-induced sleep disorder | |
| sedative, hypnotic, or anxiolytic › abuse | F13.182 | Sedative, hypnotic or anxiolytic abuse with sedative, hypnotic or anxiolytic-induced sleep disorder | |
| sedative, hypnotic, or anxiolytic › dependence | F13.282 | Sedative, hypnotic or anxiolytic dependence with sedative, hypnotic or anxiolytic-induced sleep disorder | |
| sedative, hypnotic, or anxiolytic › use | F13.982 | Sedative, hypnotic or anxiolytic use, unspecified with sedative, hypnotic or anxiolytic-induced sleep disorder | |
| stimulant NEC › abuse | F15.182 | Other stimulant abuse with stimulant-induced sleep disorder | |
| stimulant NEC › dependence | F15.282 | Other stimulant dependence with stimulant-induced sleep disorder | |
| stimulant NEC › use | F15.982 | Other stimulant use, unspecified with stimulant-induced sleep disorder |
Hypersomnia idiopathic
Hypersomnia nonorganic origin
| specified NEC | F51.19 | Other hypersomnia not due to a substance or known physiological condition |
Hypersomnia not due to a substance or known physiological condition
| specified NEC | F51.19 | Other hypersomnia not due to a substance or known physiological condition |
Index terms and codes are reproduced from the official ICD-10-CM FY2027 release. The Alphabetic Index is a finding aid — a code must always be verified in the Tabular List before it is reported. Data sources