ICD-10-CM 2027
ICD-10 code for mycoplasma pneumoniae pneumonia
Pneumonia due to Mycoplasma pneumoniae
From the official ICD-10-CM alphabetic index entry “Pneumonia (acute) (double) (migratory) (purulent) (septic) (unresolved) › Mycoplasma (pneumoniae)”. Page updated September 29, 2026.
About coding mycoplasma pneumoniae pneumonia
The ICD-10-CM code for mycoplasma pneumoniae pneumonia is J15.7 (Pneumonia due to Mycoplasma pneumoniae).
Within J15 (bacterial pneumonia, not elsewhere classified), J15.7 is specifically for pneumonia due to Mycoplasma pneumoniae. Related codes cover pneumonia due to Klebsiella pneumoniae (J15.0), pneumonia due to Pseudomonas (J15.1), pneumonia due to staphylococcus (J15.2), pneumonia due to streptococcus, group B (J15.3), pneumonia due to other streptococci (J15.4), pneumonia due to Escherichia coli (J15.5), pneumonia due to other Gram-negative bacteria (J15.6), pneumonia due to other specified bacteria (J15.8) and 1 more.
Code first: , if applicable, associated influenza (J09.X1, J10.0-, J11.0-).
As a secondary diagnosis it is an MCC (major complication or comorbidity), which can move an inpatient stay into the highest-paying "with MCC" MS-DRG of its family, unless the principal diagnosis excludes it.
Common questions about mycoplasma pneumoniae pneumonia ICD-10 codes
What is the ICD-10 code for mycoplasma pneumoniae pneumonia?
- J15.7 — Pneumonia due to Mycoplasma pneumoniae.
Is J15.7 billable?
- Yes. J15.7 is a billable/specific ICD-10-CM code valid for FY2027 (October 1, 2026 – September 30, 2027).
Can J15.7 be used as a principal diagnosis?
- Yes. The Medicare Code Editor doesn't restrict J15.7 as a principal diagnosis.
Is J15.7 a CC or MCC?
- J15.7 is an MCC (major complication or comorbidity) under MS-DRG v44.0, unless excluded by the principal diagnosis.