ICD-10-CM 2027
ICD-10 code for septum deviation
From the official ICD-10-CM alphabetic index entry “Deviation (in) › septum (nasal) (acquired)”. Page updated September 29, 2026.
About coding septum deviation
The ICD-10-CM code for septum deviation is J34.2 (Deviated nasal septum). The official index lists 1 more specific code, so check the documentation for details such as type, cause, site or severity before settling on J34.2.
Within J34 (other and unspecified disorders of nose and nasal sinuses), J34.2 is specifically for Deviated nasal septum. Related codes cover abscess, furuncle and carbuncle of nose (J34.0), cyst and mucocele of nose and nasal sinus (J34.1), hypertrophy of nasal turbinates (J34.3), other specified disorders of nose and nasal sinuses (J34.8) and unspecified disorder of nose and nasal sinuses (J34.9).
Don't report J34.2 together with the conditions in its Excludes1 note: congenital deviated nasal septum (Q67.4).
It is not a CC or MCC, so as a secondary diagnosis it doesn't change the MS-DRG severity level.
More specific septum deviation codes (official index)
- congenital Q67.4 — Other congenital deformities of skull, face and jaw
Don't confuse with (Excludes1 for J34.2)
- congenital deviated nasal septum (Q67.4)
Common questions about septum deviation ICD-10 codes
What is the ICD-10 code for septum deviation?
- J34.2 — Deviated nasal septum. More specific codes apply when the documentation supports them: Q67.4.
What is the ICD-10 code for congenital septum deviation?
- Q67.4 — Other congenital deformities of skull, face and jaw.
Is J34.2 billable?
- Yes. J34.2 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J34.2 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J34.2 as a principal diagnosis.
Is J34.2 a CC or MCC?
- No. J34.2 is neither a CC nor an MCC under MS-DRG v44.0.