P81.9 – Disturbance of temperature regulation of newborn, unspecified
ICD-10-CM 2027 diagnosis code · Conditions involving the integument and temperature regulation of newborn
ICD-10-CM code
P81.9
- Code
P81.9(claims format:P819)- Description
- Disturbance of temperature regulation of newborn, unspecified
- Short description
- Disturbance of temperature regulation of newborn, unsp
- Billable
- Yes – valid for HIPAA-covered transactions
- Valid for
- Dates of service October 1, 2026 – September 30, 2027 (FY2027)
- Chapter
- 16. Certain conditions originating in the perinatal period (P00-P96)
- Block
- P80-P83 Conditions involving the integument and temperature regulation of newborn
- Parent codes
- P81
Notes for P81.9
Applicable to:
- Fever of newborn NOS
Index terms for P81.9
Entries in the ICD-10-CM alphabetic index that lead to this code:
Related codes in P81
Frequently asked questions
What is ICD-10 code P81.9?
P81.9 is the ICD-10-CM code for disturbance of temperature regulation of newborn, unspecified, in the block P80-P83 (Conditions involving the integument and temperature regulation of newborn).
Is P81.9 a billable code?
Yes. P81.9 is a billable/specific code that can be used to indicate a diagnosis for reimbursement purposes.
What category does P81.9 belong to?
It belongs to category P81 – Other disturbances of temperature regulation of newborn.
Source: CDC/NCHS ICD-10-CM FY2027 code files, tabular list and index. Reference only – code assignment must follow the official ICD-10-CM guidelines and documentation in the medical record.