2025 ICD-10-CM Diagnosis Code Z05.81

Observation and evaluation of newborn for suspected condition related to home physiologic monitoring device ruled out

• Z05.81 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
• Short description: Obs & eval NB for susp cond rel to home physio mon dev R/O
• The 2025 edition of ICD-10-CM Z05.81 became effective on October 1, 2024.
• This is the American ICD-10-CM version of Z05.81 – other international versions of ICD-10 Z05.81 may differ.

ICD-10-CM Coding Rules

• Z05.81 is applicable to newborns of age 0 years.

Applicable To

• Encounter for observation of newborn for apnea alarm without findings
• Encounter for observation of newborn for bradycardia alarm without findings
• Encounter for observation of newborn for malfunction of home cardiorespiratory monitor
• Encounter for observation of newborn for non-specific findings home physiologic monitoring device
• Encounter for observation of newborn for pulse oximeter alarm without findings

Type 1 Excludes

• encounter for observation for suspected conditions related to home physiologic monitoring device ruled out (Z03.83)
• neonatal bradycardia (P29.12)
• other newborn apnea (P28.4-)
• primary sleep apnea of newborn (P28.3-)

The following code(s) above Z05.81 contain annotation back-references

 that may be applicable to Z05.81:

• Z00-Z99  Factors influencing health status and contact with health services
• Z00-Z13  Persons encountering health services for examinations
• Z05  Encounter for observation and evaluation of newborn for suspected diseases and conditions ruled out

Present On Admission

• Z05.81 is considered exempt from POA reporting.

ICD-10-CM Z05.81 is grouped within Diagnostic Related Group(s) (MS-DRG v42.0):

• 795 Normal newborn
• 951 Other factors influencing health status

Code History

• 2024 (effective 10/1/2023): New code
• 2025 (effective 10/1/2024): No change

Diagnosis Index entries containing back-references to Z05.81:

• Encounter (with health service) (for) Z76.89
  • observation (for) (ruled out)
    • condition suspected related to home physiologic monitoring deviceZ03.83
      • newborn Z05.81
        • apnea alarm Z05.81
        • bradycardia alarm Z05.81
        • malfunction of home cardiorespiratory monitor Z05.81
        • non-specific findings home physiologic monitoring device Z05.81
        • pulse oximeter alarm without findings Z05.81