J11.1 — Influenza due to unidentified influenza virus with other respiratory manifestations
Is J11.1 billable?
Yes — J11.1 is billable for FY2027. J11.1 is a valid, billable ICD-10-CM code at the highest level of specificity in its branch. J11.1 may be submitted for encounters from October 1, 2026 through September 30, 2027.
J11.1 at a glance
| Code | J11.1 |
|---|---|
| Description | Influenza due to unidentified influenza virus with other respiratory manifestations |
| Billable | Yes |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Which MS-DRGs does J11.1 group to?
J11.1 sits in MDC 03 and helps define the logic of 2 MS-DRGs (version 44, FY2027). Which one a stay actually groups to also depends on procedures and secondary diagnoses.
- 152Otitis Media and URI with MCCmedical
- 153Otitis Media and URI without MCCmedical
How is J11.1 listed in the Alphabetic Index?
These are the routes through the Alphabetic Index that lead to J11.1. They show the wording a clinician may have documented, which often differs from the Tabular description.
- Influenza (bronchial) (epidemic) (respiratory (upper)) (unidentified influenza virus)
- Influenza › with › laryngitis (bronchial) (epidemic) (respiratory (upper)) (unidentified influenza virus)
- Influenza › with › pharyngitis (bronchial) (epidemic) (respiratory (upper)) (unidentified influenza virus)
- Influenza › with › respiratory manifestations NEC (bronchial) (epidemic) (respiratory (upper)) (unidentified influenza virus)
Use additional code
Report an additional code alongside J11.1 to fully describe the condition. J11.1 is sequenced first.
Inclusion terms
Alternative wording in documentation that is classified to J11.1.
- Influenza NOS
- Influenzal laryngitis NOS
- Influenzal pharyngitis NOS
- Influenza with upper respiratory symptoms NOS
Use additional code — inherited from Chapter 10
Report an additional code alongside J11.1 to fully describe the condition. J11.1 is sequenced first.
Use additional code — inherited from J09-J18
Report an additional code alongside J11.1 to fully describe the condition. J11.1 is sequenced first.
- code, if applicable, to identify resistance to antimicrobial drugs (Z16.-)
Excludes2 — not included here — inherited from Chapter 10
The conditions below are not part of J11.1, but a patient may have both at the same time. When documentation supports it, J11.1 and the excluded code may both be reported.
- certain conditions originating in the perinatal period (P04-P96)
- certain infectious and parasitic diseases (A00-B99)
- complications of pregnancy, childbirth and the puerperium (O00-O9A)
- congenital malformations, deformations and chromosomal abnormalities (Q00-Q99)
- endocrine, nutritional and metabolic diseases (E00-E88)
- injury, poisoning and certain other consequences of external causes (S00-T88)
- neoplasms (C00-D49)
- smoke inhalation (T59.81-)
- symptoms, signs and abnormal clinical and laboratory findings, not elsewhere classified (R00-R94)
Excludes2 — not included here — inherited from J09-J18
The conditions below are not part of J11.1, but a patient may have both at the same time. When documentation supports it, J11.1 and the excluded code may both be reported.
How long has J11.1 existed?
J11.1 has been in ICD-10-CM since at least FY2016, the earliest fiscal year on record here.
Derived from the official order files for FY2016–FY2026. FY2017 and FY2020 publish no order file, so those years are not covered.
Which codes are confused with J11.1?
ICD-10-CM declares these codes mutually exclusive with J11.1 — exactly one of each pair can be correct for a given encounter.