2026 ICD-10-CM Diagnosis Code B67.1Echinococcus granulosus infection of lung
ICD-10-CM Codes›A00–B99›B65-B83›B67
- Billable — Valid for Submission
- CC — Complication or Comorbidity
- Not Chronic
B67.1 is a billable ICD-10-CM diagnosis code for echinococcus granulosus infection of lung. It is valid on HIPAA claims for fiscal year 2026 (October 1, 2025 through September 30, 2026) and groups to MS-DRG 177 through 179. As a secondary diagnosis, it counts as a complication or comorbidity (CC) and moves an inpatient stay to a higher severity level within its MS-DRG family. It does not count, however, when the principal diagnosis is one of 5 closely related codes. Coders also document this condition as echinococcus granulosus infection. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Other specified and unspecified lower respiratory disease; and Parasitic, other specified and unspecified infections.
B67.1 no longer risk-adjusts for Medicare Advantage: it mapped to HCC 115 under the retired CMS-HCC V24 model through payment year 2025 but maps to no category in the live V28 model. It still risk-adjusts in the PACE (CMS-HCC V22) category 115, ESRD (V21) category 115, and ESRD (V24) category 115 for payment year 2026.
Code Identity
Code Classification
Medicare Risk Adjustment (HCC)Billing
B67.1 no longer risk-adjusts for Medicare Advantage: it maps to no payment category in the live CMS-HCC V28 model, although it still risk-adjusts in the other CMS models shown below.
Source: CMS Payment Year 2026 risk adjustment mappings and model software. Weights are relative factors, not dollar amounts; a beneficiary's total RAF also includes demographics and interactions. Browse all CMS-HCC categories.
Approximate SynonymsGuidance
Alternate terms and clinical phrases that map to this code.
- Echinococcus granulosus infection
- Echinococcus granulosus infection of lung
- Infection of lung caused by Echinococcus
Index to Diseases and InjuriesGuidance
Alphabetical index entries that point to this code.
Echinococcus (infection) B67.90
lung B67.1
granulosus B67.1
Clinical ClassificationClinical
AHRQ’s CCSR groups this code into broader clinical categories.
Clinical InformationClinical
Echinococcosis
an infection caused by the infestation of the larval form of tapeworms of the genus echinococcus. the liver, lungs, and kidney are the most common areas of infestation.Echinococcosis, Hepatic
liver disease caused by infections with parasitic tapeworms of the genus echinococcus, such as echinococcus granulosus or echinococcus multilocularis. ingested echinococcus ova burrow into the intestinal mucosa. the larval migration to the liver via the portal vein leads to watery vesicles (hydatid cyst).Echinococcosis, Pulmonary
helminth infection of the lung caused by echinococcus granulosus or echinococcus multilocularis.Echinococcosis
a parasitic infection caused by tapeworm larvae of echinococcus. it affects livestock and humans. it is characterized by the formation of hydatid cysts mainly in the liver, lungs, spleen, and kidneys. rupture of the cysts may lead to shock.
Patient EducationClinical
Parasitic Diseases
Parasites are living things that use other living things - like your body - for food and a place to live. You can get them from contaminated food or water, a bug bite, or sexual contact. Some parasitic diseases are easily treated and some are not.
Read the full article at MedlinePlus
Courtesy of MedlinePlus, a service of the U.S. National Library of Medicine.
Convert B67.1 to ICD-9-CMHistory
The closest ICD-9-CM equivalents under the General Equivalence Mappings.
Code HistoryHistory
Questions About B67.1Overview
What is the ICD-10 code for echinococcus granulosus infection of lung?
The ICD-10-CM code for echinococcus granulosus infection of lung is B67.1 (sometimes written as B671). It is billable on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
Is B67.1 (Echinococcosis) a billable code?
Yes. This is a billable ICD-10-CM code, specific enough to report echinococcus granulosus infection of lung on HIPAA-covered claims from October 1, 2025 through September 30, 2026.
What MS-DRG does B67.1 group to?
When echinococcus granulosus infection of lung is the principal diagnosis on an inpatient stay, it groups to MS-DRG 177, 178, 179, with relative weights from 0.7550 to 1.5627 depending on complications. Higher weights mean higher Medicare reimbursement.
Is B67.1 a CC or MCC?
CMS lists B67.1 as a CC (complication or comorbidity) for FY 2026. Reported as a secondary diagnosis, it moves the inpatient stay to a higher-weighted DRG within its severity family. It does not count when the principal diagnosis is one of the 5 closely related codes in its exclusion list.
What is the ICD-9 equivalent of B67.1?
Under the General Equivalence Mappings, echinococcus granulosus infection of lung converts to ICD-9-CM 122.1 (echinococc granul lung). The mapping is a direct match.
Does B67.1 risk-adjust for Medicare Advantage payment?
Not for Medicare Advantage. B67.1 mapped to HCC 115 in the retired CMS-HCC V24 model, which last determined payment in 2025, but it maps to no category in the live V28 model; see all codes that no longer risk-adjust. It still risk-adjusts in the PACE (CMS-HCC V22) category 115 (Pneumococcal Pneumonia/Empyema/Lung Abscess), ESRD (V21) category 115 (Pneumococcal Pneumonia/Empyema/Lung Abscess), and ESRD (V24) category 115 (Pneumococcal Pneumonia/Empyema/Lung Abscess).
