G44.81
BillableHypnic headache
Hypnic headache
Coding Notes
Excludes 2
Conditions not included here, but the patient may have both
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations, and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
- atypical facial pain (G50.1)
- headache due to lumbar puncture (G97.1)
- migraines (G43.-)
- trigeminal neuralgia (G50.0)
- headache with orthostatic or positional component, not elsewhere classified (R51.0)
Also Known As / Clinical Terms
UMLS
- Alarm Clock HeadacheC0752150
- Alarm Clock HeadachesC0752150
- Alarm clock headacheC0752150
- Clock Headache, AlarmC0752150
- Clock Headaches, AlarmC0752150
- Headache Syndrome, HypnicC0752150
- Headache Syndromes, HypnicC0752150
- Headache, Alarm ClockC0752150
- Headache, HypnicC0752150
- Headaches, Alarm ClockC0752150
- Hypnic HeadacheC0752150
- Hypnic Headache SyndromeC0752150
- Hypnic Headache SyndromesC0752150
- Hypnic headacheC0752150
- Hypnic headache (associated with sleep)C0752150
- Hypnic headache (disorder)C0752150
Frequently Asked Questions
What is the ICD-10 code for hypnic headache?
The ICD-10-CM code for hypnic headache is G44.81. The full clinical description is "Hypnic headache". G44.81 is a billable/specific code that can be used on insurance claims and medical billing.
What does ICD-10 code G44.81 mean?
ICD-10-CM code G44.81 represents "Hypnic headache". It is classified under Chapter 6: Diseases of the Nervous System and is a billable/specific code that can be used on a claim.
Is G44.81 a billable code?
Yes, G44.81 is a billable/specific ICD-10-CM code and can be used to indicate a diagnosis on a medical claim.
What chapter is G44.81 in?
G44.81 is in Chapter 6: Diseases of the Nervous System (codes G00-G99).
What codes cannot be used with G44.81?
G44.81 has Excludes1 notes indicating codes that cannot be used together with it, including: headache NOS (R51.9).
What SNOMED CT codes does G44.81 map to?
G44.81 maps to 1 SNOMED CT concept: 122711000119109. SNOMED CT is a clinical terminology used in electronic health records.
What are the UMLS CUIs for G44.81?
G44.81 is linked to 1 UMLS Concept Unique Identifier: C0752150. The UMLS (Unified Medical Language System) integrates multiple biomedical vocabularies maintained by the U.S. National Library of Medicine.
Automate ICD-10 Coding With AI
Send clinical text to the AutoICD API and get back structured ICD-10 codes with confidence scores. Integrates into any EHR or billing system in minutes.
Includes SNOMED Clinical Terms® (SNOMED CT®) used by permission of SNOMED International. Includes content from the UMLS Metathesaurus, courtesy of the U.S. National Library of Medicine.