Alphabetic Index FY2027

Z72.821

Inadequate sleep hygiene

FY2027Chapter 21: Factors influencing health status and contact with health services/Z69–Z76 Persons encountering health services in other circumstances

BillableComplete code, valid to report

Z72.821 (also written Z72821) is a billable ICD-10-CM diagnosis code for inadequate sleep hygiene. It is part of the FY2027 code set, effective October 1, 2026. It is one of the 14 codes in category Z72 (Problems related to lifestyle). The Alphabetic Index lists it under 12 entries. Its coding notes include 1 Excludes1 entry and 2 Excludes2 entries.

Excludes1

Not coded here. The listed conditions generally should not be reported together.

This code

Excludes2

Not included here. Both codes may be reported if the patient has both conditions.

Inherited from Z72 Problems related to lifestyle
  • problems related to life-management difficulty (Z73.-)
  • problems related to socioeconomic and psychosocial circumstances (Z55-Z65)

Inclusion terms

Conditions classified to this code.

This code
  • Bad sleep habits
  • Irregular sleep habits
  • Unhealthy sleep wake schedule

Notes

Also from chapter/block level (3 notes)
Inherited from Chapter 21 Factors influencing health status and contact with health services
  • Z codes represent reasons for encounters. A corresponding procedure code must accompany a Z code if a procedure is performed. Categories Z00-Z99 are provided for occasions when circumstances other than a disease, injury or external cause classifiable to categories A00-Y89 are recorded as 'diagnoses' or 'problems'. This can arise in two main ways:
    • (a) When a person who may or may not be sick encounters the health services for some specific purpose, such as to receive limited care or service for a current condition, to donate an organ or tissue, to receive prophylactic vaccination (immunization), or to discuss a problem which is in itself not a disease or injury.
    • (b) When some circumstance or problem is present which influences the person's health status but is not in itself a current illness or injury.

Alphabetic Index terms

Terms the official Alphabetic Index lists for this code. 12 entries