ICD-10 · PDGM grouping
J40 Bronchitis, not specified as acute or chronic
The one code in the J40 family, with the PDGM clinical group, comorbidity subgroup and primary-position rule CMS assigns, read from the CMS grouper crosswalk v07.2.26 and the CDC FY2027 code file.
Codes in family
1
Can lead a claim
1
Cannot lead a claim
0
What CMS assigns to J40
This code groups to MMTA - Respiratory. It counts toward the Bronchitis, Emphysema, and Interstitial Lung Disease comorbidity subgroup. It can lead a claim.
- Bronchitis, Emphysema, and Interstitial Lung Disease: counts toward the high comorbidity tier only in an interaction pair.
The J40 code
Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.
| Code | Description | Primary position | Clinical group | Comorbidity subgroup |
|---|---|---|---|---|
| J40 | Bronchitis, not specified as acute or chronic | Can lead a claim | L | Bronchitis, Emphysema, and Interstitial Lung Disease |
Sources: CMS HH PPS Grouper Software v07.2.26, effective 2026-10-01, for the clinical group, comorbidity subgroup, code-first conventions and primary-position flags; CDC NCHS ICD-10-CM FY2027 code descriptions for the family title and code wording. This is the crosswalk Medicare runs a claim through. Grouping also depends on admission source, timing, the OASIS functional items and the rest of the diagnosis list.
The monthly home health regs digest
What CMS changed, what's due next, and what to do about it — one email a month, no fluff. Read the first issue