October 1 update. Our PDGM and ICD-10 tools now use the FY2027 code set: 190 codes added, 30 deleted, and no existing code changed clinical group.

See what changed

ICD-10 · PDGM grouping

J44 Other chronic obstructive pulmonary disease

All 5 codes in the J44 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.

ICD-10-CM FY2027 · CMS grouper v07.2.26

Codes in family

5

Can lead a claim

5

Cannot lead a claim

0

What CMS assigns to J44

All 5 codes group to MMTA - Respiratory. All 5 count toward the Chronic Obstructive Pulmonary Disease, Asthma, and Bronchiectasis comorbidity subgroup. Every code can lead a claim. CMS attaches a code-first note to 1 of the 5.

  • Chronic Obstructive Pulmonary Disease, Asthma, and Bronchiectasis: counts toward the high comorbidity tier only in an interaction pair.

Code first

CMS grouper convention 86, on J44.81. Code first:

  • , if applicable:
  • complication of bone marrow transplant (T86.09)
  • complication of stem cell transplant (T86.5)
  • heart-lung transplant rejection (T86.31)
  • lung transplant rejection (T86.810)
  • other complications of heart-lung transplant (T86.39)
  • other complications of lung transplant (T86.818)

Every code in J44

Descriptions are CDC’s FY2027 wording; where CMS’s grouper abbreviates one, its form is shown beneath.

CodeDescriptionPrimary positionClinical groupComorbidity subgroup
J44.0Chronic obstructive pulmonary disease with (acute) lower respiratory infectionCMS: Chr obstructive pulmon disease with (acute) lower resp infctCan lead a claimLChronic Obstructive Pulmonary Disease, Asthma, and Bronchiectasis
J44.1Chronic obstructive pulmonary disease with (acute) exacerbationCMS: Chronic obstructive pulmonary disease w (acute) exacerbationCan lead a claimLChronic Obstructive Pulmonary Disease, Asthma, and Bronchiectasis
J44.8 Other specified chronic obstructive pulmonary disease
J44.81Bronchiolitis obliterans and bronchiolitis obliterans syndromeCMS: Bronchiolitis obliterans and bronchiolitis obliterans syndCan lead a claim, code first appliesLChronic Obstructive Pulmonary Disease, Asthma, and Bronchiectasis
J44.89Other specified chronic obstructive pulmonary diseaseCan lead a claimLChronic Obstructive Pulmonary Disease, Asthma, and Bronchiectasis
J44.9Chronic obstructive pulmonary disease, unspecifiedCan lead a claimLChronic Obstructive Pulmonary Disease, Asthma, and Bronchiectasis

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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