J01.9 ICD-10-CA code: Acute sinusitis, unspecified
J01.9 is the ICD-10-CA code for “Acute sinusitis, unspecified” in CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026.
Official description
J01.9Acute sinusitis, unspecified
Short description: Acute sinusitis unspecified
ICD-10-CA · Canada · Also written J019
Index terms
Entries in CIHI’s alphabetical index that lead to J01.9. Searching the index by the condition the note names is how coders reach this code.
- Sinusitis (accessory) (chronic) (hyperplastic) (nasal) (nonpurulent) (purulent), acute
- Sinusitis (accessory) (chronic) (hyperplastic) (nasal) (nonpurulent) (purulent), viral
- Abscess (embolic) (infective) (metastatic) (multiple) (pyogenic) (septic), accessory sinus (chronic), acute
Notes for J01.9
As CIHI prints them, with any note J01.9 takes from the headings above it.
Includes
- abscess, empyema, infection, inflammation, suppuration — acute, of sinus (accessory)(nasal)From J01 Acute sinusitis
Use additional code
Add a code for this detail when the note documents it.
- Use additional code (B95-B97) to identify infectious agent.From J01 Acute sinusitis
Excludes
Conditions classified elsewhere.
- Sinusitis, chronic or NOS (J32.-)From J01 Acute sinusitis
- Chronic obstructive pulmonary disease with acute exacerbation NOS (J44.1)From J00-J06 Acute upper respiratory infections
- Certain:• conditions originating in the perinatal period (P00-P96)• infectious and parasitic diseases (A00-B99)complications of pregnancy, childbirth and the puerperium (O00-O99)congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)endocrine, nutritional and metabolic diseases (E00-E90)injury, poisoning and certain other consequences of external causes (S00-T98)neoplasms (C00-D48)symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R99)From Chapter 10: Diseases of the respiratory system (J00-J99)
Note
- When a respiratory condition is described as occurring in more than one site and is not specifically indexed, it should be classified to the lower anatomic site (e.g., tracheobronchitis to bronchitis in J40).From Chapter 10: Diseases of the respiratory system (J00-J99)
Where J01.9 sits
- 1ChapterChapter 10: Diseases of the respiratory system (J00-J99)
- 2Block J00-J06Acute upper respiratory infections
- 3Category J01Acute sinusitis
- 4Valid code J01.9Acute sinusitis, unspecified
Source and release
- Data release
- ICD-10-CA · FY 2026–2027
- Effective date
- Apr 1, 2026
- Publisher
- CIHI
This page is built from the ICD-10-CA catalog that Vero Codes reads when it suggests codes: Canadian Institute for Health Information’s FY 2026–2027 release, imported from the publisher’s file and checked against it. The description, notes and structured data come from the same record.
Frequently asked questions
What does ICD-10-CA code J01.9 mean?
J01.9 is the ICD-10-CA code for “Acute sinusitis, unspecified” in CIHI’s ICD-10-CA FY 2026–2027 release.
Where is J01.9 in ICD-10-CA?
J01.9 sits under J01 Acute sinusitis, within J00-J06 Acute upper respiratory infections, within Chapter 10: Diseases of the respiratory system (J00-J99).
What coding notes apply to J01.9?
ICD-10-CA lists Includes, Use additional code, Excludes, Note notes for J01.9, including those from the headings it sits under. They are listed on this page with where each one comes from.
Which ICD-10-CA release does this page use?
It uses CIHI’s FY 2026–2027 release, in effect from Apr 1, 2026 to Mar 31, 2027. It is a reference: confirm the code against the current list and the payer’s rules before you submit it.