ICD-10 Code for Insomnia
The default ICD-10-CM 2027 code for insomnia (organic) is G47.00 – Insomnia, unspecified. More specific codes depend on the details documented, as listed in the official index (33 codes, 33 billable).
- Main code
G47.00– Insomnia, unspecified- Billable
- Yes
Index entries for Insomnia
- adjustment –
F51.02 - adjustment disorder –
F51.02 - behavioral, of childhood –
Z73.819 - childhood –
Z73.819 - chronic –
F51.04- somatized tension –
F51.04
- somatized tension –
- conditioned –
F51.04 - due to
- fatal familial (FFI) –
A81.83 - idiopathic –
F51.01 - learned –
F51.3 - nonorganic origin –
F51.01 - not due to a substance or known physiological condition –
F51.01- specified NEC –
F51.09
- specified NEC –
- paradoxical –
F51.03 - primary –
F51.01 - psychiatric –
F51.05 - psychophysiologic –
F51.04 - related to psychopathology –
F51.05 - short-term –
F51.02 - specified NEC –
G47.09 - stress-related –
F51.02 - transient –
F51.02 - without objective findings –
F51.02
How to choose the right code
Start with the main term, then pick the indented subterm that matches the documentation (type, cause, site, laterality, episode of care). Always confirm the code in the tabular list: follow its Excludes1/Excludes2, “code first” and “use additional code” notes, and add a 7th character where required.
Source: CDC/NCHS ICD-10-CM FY2027 alphabetic index.