2026 ICD-10-CM Diagnosis Code P92.6Failure to thrive in newborn
ICD-10-CM Codes›P00–P96›P90-P96›P92
- Billable — Valid for Submission
- Not Chronic
P92.6 is a billable ICD-10-CM diagnosis code for failure to thrive in newborn. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 640 through 641. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Neonatal digestive and feeding disorders.
Code Identity
Code Classification
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Failure to gain weight
- Failure to thrive
- Failure to thrive in infant
- Failure to thrive in neonate
- Infantile erythroderma, failure to thrive and diarrhea syndrome
- Organic failure to thrive
- Pediatric failure to thrive
- Renal function impairment with growth failure
- Severe feeding difficulties, failure to thrive, microcephaly due to ASXL3 deficiency syndrome
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Type 1 Excludes
- failure to thrive in child over 28 days old R62.51
A type 1 excludes note is a pure excludes note. It means "NOT CODED HERE!" An Excludes1 note indicates that the code excluded should never be used at the same time as the code above the Excludes1 note. An Excludes1 is used when two conditions cannot occur together, such as a congenital form versus an acquired form of the same condition.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- gain weight (child over 28 days old) - R62.51
- newborn - P92.6
- to thrive (child over 28 days old) - R62.51
- newborn - P92.6
- Lack of
- development (physiological) - R62.50
- failure to thrive (child over 28 days old) - R62.51
- newborn - P92.6
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Failure, failed
- gain weight (child over 28 days old)
- newborn
- Failure, failed
- to thrive (child over 28 days old)
- newborn
- Lack of
- development (physiological)
- failure to thrive (child over 28 days old)
- newborn
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Failure to Thrive
a condition of substandard growth or diminished capacity to maintain normal function.
Patient EducationClinical
Growth Disorders
Does your child seem much shorter - or much taller - than other kids his or her age? It could be normal. Some children may be small for their age but still be developing normally. Some children are short or tall because their parents are.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert P92.6 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About P92.6Overview
Is P92.6 (Feeding problems of newborn) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report failure to thrive in newborn on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does P92.6 group to?
When failure to thrive in newborn is the principal diagnosis on an inpatient stay, it groups to MS-DRG 640, 641, with relative weights from 0.7782 to 1.3356 depending on complications. Higher weights mean higher Medicare reimbursement.
What is the ICD-9 equivalent of P92.6?
Under the General Equivalence Mappings, failure to thrive in newborn converts to ICD-9-CM 779.34 (NB failure to thrive). The mapping is a direct match.
Footnotes
[1] Not chronic - A diagnosis code that does not fit the criteria for chronic condition (duration, ongoing medical treatment, and limitations) is considered not chronic. Some codes designated as not chronic are acute conditions. Other diagnosis codes that indicate a possible chronic condition, but for which the duration of the illness is not specified in the code description (i.e., we do not know the condition has lasted 12 months or longer) also are considered not chronic.
