2026 ICD-10-CM Diagnosis Code Q89.9Congenital malformation, unspecified
ICD-10-CM Codes›Q00-Q99›Q80-Q89›Q89
- Billable — Valid for Submission
- POA Exempt
- Chronic Condition
Q89.9 is a billable ICD-10-CM diagnosis code for congenital malformation, unspecified. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is exempt from POA reporting. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified congenital anomalies.
Code Identity
Code Classification
Present on Admission (POA)Billing
Q89.9 is exempt from POA reporting on inpatient claims to general acute care hospitals. Review other POA exempt codes.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Amegakaryocytic thrombocytopenia
- Amegakaryocytic thrombocytopenia with congenital malformation
- Congenital abnormal shape of rib
- Congenital anomaly of back
- Congenital anomaly of mother complicating pregnancy
- Congenital deformity
- Congenital disease
- Congenital malformation
- Congenital malformation syndrome
- Congenital pectus carinatum
- Congenital porencephaly
- Congenital sequelae of disorders
- Deformity
- Deformity of sternum
- Dysmorphism
- Dysmorphism, pectus carinatum, joint laxity syndrome
- Dysmorphism, short stature, deafness, disorder of sex development syndrome
- Malformation sequence
- Pectus carinatum
- Pectus deformity of chest
- Porencephaly, cerebellar hypoplasia, internal malformations syndrome
- Pulmonary hypertension due to developmental abnormality
- Single congenital anomaly
- Spinocerebellar ataxia dysmorphism syndrome
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
- Congenital anomaly NOS
- Congenital deformity NOS
These terms are the conditions for which that code is to be used. The terms may be synonyms of the code title, or, in the case of "other specified" codes, the terms are a list of the various conditions assigned to that code. The inclusion terms are not necessarily exhaustive. Additional terms found only in the Alphabetic Index may also be assigned to a code.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- Abnormal, abnormality, abnormalities - See Also: Anomaly;
- anatomical relationship - Q89.9
- development, developmental - Q89.9
- Defect, defective - Q89.9
- Deformity - Q89.9
- abdomen, congenital - Q89.9
- lymphatic system, congenital - Q89.9
- congenital - Q89.9
- Embryopathia NOS - Q89.9
- Malformation (congenital) - See Also: Anomaly;
- umbilicus - Q89.9
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- Abnormal, abnormality, abnormalities
- anatomical relationship
- Abnormal, abnormality, abnormalities
- development, developmental
- Anomaly, anomalous(congenital) (unspecified type)
- Anomaly, anomalous(congenital) (unspecified type)
- back
- Anomaly, anomalous(congenital) (unspecified type)
- organ
- Defect, defective
- Deformity
- Deformity
- abdomen, congenital
- Deformity
- lymphatic system, congenital
- Deformity
- trunk (acquired)
- congenital
- Embryopathia NOS
- Malformation(congenital)
- umbilicus
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Pectus Carinatum
a developmental anomaly characterized by abnormal anterior protrusion of the sternum and adjacent costal cartilage.Congenital Malformation Syndrome
a syndrome characterized by the presence of congenital abnormalities that affect more than one organ or system.Congenital Malformation Syndrome Related to Known Exogenous Cause|Congenital Malformation Syndrome due to Known Exogenous Cause|Congenital Malformation Syndrome due to Known Exogenous Cause
a syndrome characterized by the presence of structural malformations that are present at birth and can be attributed to an exogenous cause.
Patient EducationClinical
Birth Defects
A birth defect is a problem that happens while a baby is developing in the mother's body. Most birth defects happen during the first 3 months of pregnancy. One out of every 33 babies in the United States is born with a birth defect.
The full article covers:
- What are birth defects?
- What causes birth defects?
- Who is at risk of having a baby with birth defects?
- How are birth defects diagnosed?
- What are the treatments for birth defects?
- Can birth defects be prevented?
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert Q89.9 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About Q89.9Overview
Is Q89.9 (Other congenital malformations, not elsewhere classified) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report congenital malformation, unspecified on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is Q89.9 exempt from POA reporting?
Yes. CMS lists this code among those exempt from present on admission reporting, so hospitals do not assign a POA indicator for congenital malformation, unspecified on inpatient claims.
What is the ICD-9 equivalent of Q89.9?
Under the General Equivalence Mappings, congenital malformation, unspecified converts to ICD-9-CM 759.9 (congenital anomaly NOS). The mapping is a direct match.
Footnotes
[1] Chronic - a chronic condition code indicates a condition lasting 12 months or longer and its effect on the patient based on one or both of the following criteria:
- The condition results in the need for ongoing intervention with medical products,treatment, services, and special equipment
- The condition places limitations on self-care, independent living, and social interactions.
