ICD-10-CM category G47: Sleep disorders
Category G47 is a heading in chapter 6 (Diseases of the nervous system (G00-G99)), section Episodic and paroxysmal disorders (G40-G47). It is not billable; report one of the 43 complete codes below.
Notes that apply to every G47 code
- Excludes2 (not part of this condition, may be coded together)
- nightmares (F51.5)
- nonorganic sleep disorders (F51.-)
- sleep terrors (F51.4)
- sleepwalking (F51.3)
Billable codes in G47
| Code | Description |
|---|---|
| G47.00 | Insomnia, unspecified |
| G47.01 | Insomnia due to medical condition |
| G47.09 | Other insomnia |
| G47.10 | Hypersomnia, unspecified |
| G47.11 | Idiopathic hypersomnia with long sleep time |
| G47.12 | Idiopathic hypersomnia without long sleep time |
| G47.13 | Recurrent hypersomnia |
| G47.14 | Hypersomnia due to medical condition |
| G47.19 | Other hypersomnia |
| G47.20 | Circadian rhythm sleep disorder, unspecified type |
| G47.21 | Circadian rhythm sleep disorder, delayed sleep phase type |
| G47.22 | Circadian rhythm sleep disorder, advanced sleep phase type |
| G47.23 | Circadian rhythm sleep disorder, irregular sleep wake type |
| G47.24 | Circadian rhythm sleep disorder, free running type |
| G47.25 | Circadian rhythm sleep disorder, jet lag type |
| G47.26 | Circadian rhythm sleep disorder, shift work type |
| G47.27 | Circadian rhythm sleep disorder in conditions classified elsewhere |
| G47.29 | Other circadian rhythm sleep disorder |
| G47.30 | Sleep apnea, unspecified |
| G47.31 | Primary central sleep apnea |
| G47.32 | High altitude periodic breathing |
| G47.33 | Obstructive sleep apnea (adult) (pediatric) |
| G47.34 | Idiopathic sleep related nonobstructive alveolar hypoventilation |
| G47.35 | Congenital central alveolar hypoventilation syndrome |
| G47.36 | Sleep related hypoventilation in conditions classified elsewhere |
| G47.37 | Central sleep apnea in conditions classified elsewhere |
| G47.39 | Other sleep apnea |
| G47.411 | Narcolepsy with cataplexy |
| G47.419 | Narcolepsy without cataplexy |
| G47.421 | Narcolepsy in conditions classified elsewhere with cataplexy |
| G47.429 | Narcolepsy in conditions classified elsewhere without cataplexy |
| G47.50 | Parasomnia, unspecified |
| G47.51 | Confusional arousals |
| G47.52 | REM sleep behavior disorder |
| G47.53 | Recurrent isolated sleep paralysis |
| G47.54 | Parasomnia in conditions classified elsewhere |
| G47.59 | Other parasomnia |
| G47.61 | Periodic limb movement disorder |
| G47.62 | Sleep related leg cramps |
| G47.63 | Sleep related bruxism |
| G47.69 | Other sleep related movement disorders |
| G47.8 | Other sleep disorders |
| G47.9 | Sleep disorder, unspecified |
Sources
Every figure on this page is taken from the CMS publications below, as released by the Centers for Medicare & Medicaid Services. Projection built 2026-10-10. Verify against the primary file before billing or contracting decisions. The reference methodology explains how each figure is computed from these files.
- ICD-10-CM FY2027 tabular order file (category titles)Version FY2027 · effective 2026-10-01 · file icd10cm_order_2027.txtSHA-256 38981fb2c1226e2b…
- ICD-10-CM FY2027 tabular list (chapter titles and ranges)Version FY2027 · effective 2026-10-01 · file 2027-code-tables-tabular-index.zipSHA-256 37baa476323714be…
- ICD-10-CM FY2027 code descriptions addenda (codes added, deleted and revised)Version FY2027 · effective 2026-10-01 · file icd10cm_codes_addenda_2027.txtSHA-256 cfba025073235af4…
- ICD-10 MS-DRG Definitions Manual v44 (text)Version v44 · effective 2026-10-01 · file fy2027-fr-icd10-ms-drg-definitions-manual-files-v44.zipSHA-256 ae4f6c11727fe91f…
- IPPS FY2027 Tables 6A-6K: new, invalid and revised ICD-10-CM/PCS codes, CC/MCC list changes and CC exclusionsVersion FY2027 (final rule; not reissued by CN3) · effective 2026-10-01 · file fy2027-ipps-fr-tables-6a-6k.zipSHA-256 ca0af87b0869a405…
- ICD-10-CM FY2027 POA-exempt codes (full list, additions, deletions and revisions)Version FY2027 · effective 2026-10-01 · file 2027-poa-exempt-codes.zipSHA-256 03f55091045024d0…
- ICD-10-CM to CMS-HCC V28 mappings, payment year 2027 initialVersion PY2027 initial ICD-10-CM mappings (dates of service 2026) · effective 2027-01-01 · file 2027 Initial ICD-10-CM Mappings.csvSHA-256 9c260b06d0dd2806…
- Medicare Coverage Database, current Billing and Coding Articles exportVersion MCD release 2026-10-08 · effective 2026-10-04 · file article.csvSHA-256 5e95c4a8ac3664be…
Codes from the FY2027 ICD-10-CM files (all chapters). Report the code that matches the documentation and the Official Guidelines; this list is not coding advice.