Billable / Specific Code
ICD-10-CM P81.9 is the diagnosis code for Disturbance of temperature regulation of newborn, unspecified. This code falls under the section "Conditions involving the integument and temperature regulation of newborn" within Chapter 16 — Certain conditions originating in the perinatal period (P00-P96). It is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes. Medical coders and healthcare providers use this code to document and classify diagnoses in electronic health records, insurance claims, and clinical databases.
Understanding where P81.9 sits in the ICD-10-CM classification helps ensure proper coding:
Yes, P81.9 is a billable/specific ICD-10-CM code that can be used to indicate a diagnosis for reimbursement purposes.
P81.9 is the ICD-10-CM diagnosis code for "Disturbance of temperature regulation of newborn, unspecified". It is used by healthcare providers to classify and document this condition in medical records and insurance claims.
The parent code of P81.9 is P81 ("Other disturbances of temperature regulation of newborn"). P81.9 provides a more specific classification within this category.
P81.9 is located in Section P80-P83 — "Conditions involving the integument and temperature regulation of newborn" within Chapter 16 of the ICD-10-CM Tabular List.
Use P81.9 when the patients documented diagnosis matches "Disturbance of temperature regulation of newborn, unspecified" and the clinical documentation supports this level of specificity. Always verify with the latest ICD-10-CM guidelines and payer requirements.
The ICD-10-CM code for Disturbance of temperature regulation of newborn, unspecified is P81.9.
Yes, P81.9 can be used as a primary diagnosis code since it is billable and specific.
P81.9 is in Chapter 16 of the ICD-10-CM Tabular List.
Yes, P81.9 is a valid ICD-10-CM code for the 2026 fiscal year, subject to official CMS updates.