2026 ICD-10-CM Diagnosis Code Z83.6Family history of other diseases of the respiratory system
Z83.6 is a billable ICD-10-CM diagnosis code for family history of other diseases of the respiratory system. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026). The code is not accepted as a principal diagnosis by the Medicare Code Editor and exempt from POA reporting. Coders also document this condition as family history of allergic rhinitis. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Family history of disease.
Code Identity
Code Classification
Code EditsBilling
Medicare Code Editor checks that affect claim validity for Z83.6.
Present on Admission (POA)Billing
Z83.6 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.
- Family history of allergic rhinitis
- Family history of chronic respiratory disease
- Family history of disorder of lung
- Family history of reactive airway disease
- Family history: Occupational lung disease
- FH: Hay fever
- FH: Respiratory disease
Tabular List NotesGuidance
Coding notes and annotation back-references applicable to this code.
Inclusion Terms
Type 2 Excludes
- family history of asthma and other chronic lower respiratory diseases Z82.5
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.
A type 2 excludes note represents "Not included here". An excludes2 note indicates that the condition excluded is not part of the condition represented by the code, but a patient may have both conditions at the same time. When an Excludes2 note appears under a code, it is acceptable to use both the code and the excluded code together, when appropriate.
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
- History
- family (of) - See Also: History, personal (of);
- respiratory NEC - Z83.6
- respiratory condition NEC - Z83.6
External Cause of Injuries IndexGuidance
References for this code in the External Cause of Injuries Index.
- History
- family (of)
- disease or disorder (of)
- respiratory NEC
- History
- family (of)
- respiratory condition NEC
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Patient EducationClinical
Family History
Your family history includes health information about you and your close relatives. Families have many factors in common, including their genes, environment, and lifestyle. Looking at these factors can help you figure out whether you have a higher risk for certain health problems, such as heart disease, stroke, and cancer.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert Z83.6 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About Z83.6Overview
Is Z83.6 (Family history of other specific disorders) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report family history of other diseases of the respiratory system on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Can Z83.6 be a principal diagnosis?
No. The Medicare Code Editor rejects this code as a principal diagnosis because family history of other diseases of the respiratory system describes a circumstance that influences health status rather than a current illness. Report it as a secondary diagnosis.
Is Z83.6 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 family history of other diseases of the respiratory system on inpatient claims.
What is the ICD-9 equivalent of Z83.6?
Under the General Equivalence Mappings, family history of other diseases of the respiratory system converts to ICD-9-CM V17.6 (fam hx-chr resp cond NEC). The mapping is approximate, so confirm the match fits the documentation.
