J45.2 — Mild intermittent asthma
Is J45.2 billable?
No — J45.2 is a non-billable header code. J45.2 groups more specific codes and cannot be submitted on a claim. A valid ICD-10-CM code must be reported at the highest level of specificity available in its branch. Select one of the 3 billable codes beneath J45.2.
J45.2 at a glance
| Code | J45.2 |
|---|---|
| Description | Mild intermittent asthma |
| Billable | No — header code |
| Code set | ICD-10-CM FY2027 |
| Valid for encounters | October 1, 2026 – September 30, 2027 |
Excludes1 — never code together — inherited from J40-J4B
The conditions below can never be reported together with J45.2 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
- bronchitis due to chemicals, gases, fumes and vapors (J68.0)
Excludes1 — never code together — inherited from J45
The conditions below can never be reported together with J45.2 on the same claim. An Excludes1 note means the two conditions cannot occur in the same patient, so reporting both is a coding error.
Use additional code — inherited from Chapter 10
Report an additional code alongside J45.2 to fully describe the condition. J45.2 is sequenced first.
Use additional code — inherited from J45
Report an additional code alongside J45.2 to fully describe the condition. J45.2 is sequenced first.
Excludes2 — not included here — inherited from Chapter 10
The conditions below are not part of J45.2, but a patient may have both at the same time. When documentation supports it, J45.2 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 J40-J4B
The conditions below are not part of J45.2, but a patient may have both at the same time. When documentation supports it, J45.2 and the excluded code may both be reported.
- cystic fibrosis (E84.-)
Excludes2 — not included here — inherited from J45
The conditions below are not part of J45.2, but a patient may have both at the same time. When documentation supports it, J45.2 and the excluded code may both be reported.
What codes fall under J45.2? (3)
How long has J45.2 existed?
J45.2 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.