Disorder of muscle tone of newborn, unspecified

This code signifies an abnormal muscle tone in a newborn where the specific type of disorder (e.g., hypotonia, hypertonia) or its underlying cause has not been determined or documented. It indicates a general disturbance in the infant's muscle tension or resistance to passive movement.

Use this code when a newborn exhibits an uncharacterized disorder of muscle tone, and the medical record lacks further specificity regarding the nature or etiology of the tone abnormality. This is often an interim diagnosis while further evaluation is pending to identify the specific type of muscle tone disorder. Documentation should clearly state "disorder of muscle tone, unspecified" or similar vague terminology.

• Avoid using this code if the documentation specifies hypotonia (P94.1) or hypertonia (P94.0).
• Always seek clarification from the provider if the documentation suggests a more specific muscle tone disorder.
• This code should be used as a last resort when no other specific code for a newborn muscle tone disorder can be assigned.