ICD-10-CM 2027
ICD-10 code for childhood insomnia
Behavioral insomnia of childhood, unspecified type
From the official ICD-10-CM alphabetic index entry “Insomnia (organic) › childhood”. Page updated September 29, 2026.
About coding childhood insomnia
The ICD-10-CM code for childhood insomnia is Z73.819 (Behavioral insomnia of childhood, unspecified type).
Within Z73.81, choose Z73.819 (unspecified type) only when documentation doesn't support a more specific option: sleep-onset association type (Z73.810), limit setting type (Z73.811) and combined type (Z73.812).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
In MS-DRG v44.0, it is part of the grouping logic for DRG 951 (Other Factors Influencing Health Status, relative weight 0.5577), in MDC 23 (Factors Influencing Health Status and Other Contacts with Health Services), as a principal or secondary diagnosis. The DRG a claim lands in depends on the principal diagnosis, procedures and any CC/MCC secondary diagnoses.
Common questions about childhood insomnia ICD-10 codes
What is the ICD-10 code for childhood insomnia?
- Z73.819 — Behavioral insomnia of childhood, unspecified type.
Is Z73.819 billable?
- Yes. Z73.819 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can Z73.819 be used as a principal diagnosis?
- No. It is not acceptable as the principal diagnosis for an inpatient stay; it may be reported as a secondary diagnosis.
Is Z73.819 a CC or MCC?
- No. Z73.819 is neither a CC nor an MCC under MS-DRG v44.0.