ICD-10 · PDGM grouping
J98 Other respiratory disorders
All 12 codes in the J98 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
12
Can lead a claim
11
Cannot lead a claim
1
What CMS assigns to J98
11 of the 12 codes group to MMTA - Respiratory; 1 is assigned no clinical group. Comorbidity subgroups: 3 toward Respiratory Failure and Atelectasis; 2 toward Bronchitis, Emphysema, and Interstitial Lung Disease; 7 are assigned none. 11 of the 12 can lead a claim. CMS attaches a code-first note to 1 of the 12.
- Respiratory Failure and Atelectasis: counts toward the high comorbidity tier only in an interaction pair.
- Bronchitis, Emphysema, and Interstitial Lung Disease: counts toward the high comorbidity tier only in an interaction pair.
Code first
CMS grouper convention 96, on J98.51. Code first:
- underlying condition, if applicable, such as postoperative mediastinitis (T81.-)
Every code in J98
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 |
|---|---|---|---|---|
| J98.0 Diseases of bronchus, not elsewhere classified | ||||
| J98.01 | Acute bronchospasm | Can lead a claim | L | None |
| J98.09 | Other diseases of bronchus, not elsewhere classified | Can lead a claim | L | None |
| J98.1 Pulmonary collapse | ||||
| J98.11 | Atelectasis | Can lead a claim | L | Respiratory Failure and Atelectasis |
| J98.19 | Other pulmonary collapse | Can lead a claim | L | Respiratory Failure and Atelectasis |
| J98.2 | Interstitial emphysema | Can lead a claim | L | Bronchitis, Emphysema, and Interstitial Lung Disease |
| J98.3 | Compensatory emphysema | Can lead a claim | L | Bronchitis, Emphysema, and Interstitial Lung Disease |
| J98.4 | Other disorders of lung | Can lead a claim | L | Respiratory Failure and Atelectasis |
| J98.5 Diseases of mediastinum, not elsewhere classified | ||||
| J98.51 | Mediastinitis | Can lead a claim, code first applies | L | None |
| J98.59 | Other diseases of mediastinum, not elsewhere classified | Can lead a claim | L | None |
| J98.6 | Disorders of diaphragm | Can lead a claim | L | None |
| J98.8 | Other specified respiratory disorders | Can lead a claim | L | None |
| J98.9 | Respiratory disorder, unspecified | Cannot lead a claimPrincipal diagnosis not assigned to a clinical group | None | None |
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.
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