2027 ICD-10-CM Diagnosis Code B71.8Other specified cestode infections

ICD-10-CM Codes›A00–B99›B65-B83›B71

ICD-10-CM B71.8
CMSSource: CMS FY 2027 ICD-10-CM dataset · Effective Oct 1, 2026 – Sep 30, 2027

B71.8 is a billable ICD-10-CM diagnosis code for other specified cestode infections. It is valid on HIPAA claims for fiscal year 2027 (October 1, 2026 through September 30, 2027) and groups to MS-DRG 371 through 373. 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 14 closely related codes. In AHRQ's Clinical Classifications Software (CCSR), this diagnosis falls under Parasitic, other specified and unspecified infections.

Code Identity

ICD-10-CM Code
B71.8
Billable Status
Yes — Valid for Submission
Code Describes
Other specified cestode infections
Short Description
Other specified cestode infections
Same as the full description in the CMS dataset.
Parent Code
Other cestode infections

Code Classification

ChapterA00–B99Certain infectious and parasitic diseases
SectionB65-B83Helminthiases
CategoryB71Other cestode infections
This CodeB71.8Other specified cestode infections

Approximate SynonymsGuidance

Alternate terms and clinical phrases that map to this code.

  • Coenurosis
  • Cysticercosis myelitis
  • Disease caused by Anoplocephalidae
  • Disease caused by Caryophyllaeidae
  • Disease caused by cestode of Bothriocephalidea
  • Disease caused by cestode of Caryophyllidea
  • Disease caused by cestode of Cyclophyllidea
  • Disease caused by Davaineidae
  • Disease caused by Dilepididae
  • Disease caused by Hymenolepididae
  • Disease caused by Linstowiidae
  • Disease caused by Mesocestoididae
  • Disease caused by Thysanosomatinae
  • Drepanidotaeniosis
  • Infection by Amoebotaenia
  • Infection by Andrya
  • Infection by Anoplocephala
  • Infection by Anoplocephala magna
  • Infection by Anoplocephala perfoliata
  • Infection by Avitellina
  • Infection by Bertiella
  • Infection by Caryophyllaeus
  • Infection by Choanotaenia
  • Infection by Cittotaenia
  • Infection by Coenurosis cerebralis
  • Infection by Coenurosis serialis
  • Infection by Cotugnia
  • Infection by Davainea
  • Infection by Diorchis
  • Infection by Diplogonoporus
  • Infection by Diplogonoporus grandis
  • Infection by Fimbriaria
  • Infection by Houttuynia
  • Infection by Inermicapsifer
  • Infection by Khawia
  • Infection by Mesocestoides
  • Infection by Mesocestoides corti
  • Infection by Mesocestoides lineatus
  • Infection by Metroliasthes
  • Infection by Microsomacanthus
  • Infection by Moniezia
  • Infection by Moniezia benedeni
  • Infection by Moniezia expansa
  • Infection by Mosgovoyia
  • Infection by Multiceps multiceps
  • Infection by Neoctenotaenia
  • Infection by Oochoristica
  • Infection by Paranoplocephala
  • Infection by Paranoplocephala mammillana
  • Infection by Raillietina
  • Infection by Stilesia
  • Infection by Stilesia hepatica
  • Infection by Thysaniezia
  • Infection by Thysanosoma
  • Infection by Thysanosoma actinioides
  • Myelitis caused by Coenurus cerebralis
  • Parasitic infection causing myelitis

Instructional NotesGuidance

Instructions from the official ICD-10-CM Tabular List that apply to B71.8: its own notes plus those printed at Chapter 1. A note printed at a category, block or chapter applies to every code under it.

Includes

Further defines, or gives examples of, the content of the category.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • diseases generally recognized as communicable or transmissible

Applicable To

Conditions this code is used for: synonyms of the title or, for "other specified" codes, the conditions assigned to it. The list is not exhaustive.

  • Coenurosis

Excludes2

Not included here: the excluded condition is not part of this code, but a patient may have both, so both codes may be reported.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • carrier or suspected carrier of infectious disease (Z22.-)
  • certain localized infections - see body system-related chapters
  • infectious and parasitic diseases complicating pregnancy, childbirth and the puerperium (O98.-)
  • infectious and parasitic diseases specific to the perinatal period (P35-P39)
  • influenza and other acute respiratory infections (J00-J22)

Use Additional Code

Add a second code, after this one, to fully describe the condition.

From Chapter 1 (A00-B99) Certain infectious and parasitic diseases applies to 1,068 codes
  • code to identify resistance to antimicrobial drugs (Z16.-)

Source: CMS ICD-10-CM Tabular List. How to read instructional notes.

Referenced in Other NotesGuidance

Instructional notes printed at other codes that name B71.8, its category, or a range that includes it.

Applicable To 1

These notes mention B71.8.

  • B81.4 Mixed intestinal helminthiases
    Infection due to intestinal helminths classified to more than one of the categories B65.0-B81.3 and B81.8 names B65.0-B81.3, which includes this code

Code First 1

These codes say to code first a condition named in the note, and B71.8 is one of the conditions named.

  • K67 Disorders of peritoneum in infectious diseases classified elsewhere
    helminthiasis (B65.0 -B83.9) names B65.0 -B83.9, which includes this code

Index to Diseases and InjuriesGuidance

Clinical ClassificationClinical

AHRQ’s CCSR groups this code into broader clinical categories.

CCSR INF009
Parasitic, other specified and unspecified infections
Default principal diagnosis: inpatient Yes · outpatient Yes

Clinical InformationClinical

  • Cysticercosis

    infection with cysticercus, the larval form of the various tapeworms of the genus taenia (usually t. solium in man). in humans they penetrate the intestinal wall and invade subcutaneous tissue, brain, eye, muscle, heart, liver, lung, and peritoneum. brain involvement results in neurocysticercosis.

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 B71.8 to ICD-9-CMHistory

The closest ICD-9-CM equivalents under the General Equivalence Mappings.

ICD-9-CM
123.8 Cestode infection NEC
Approximate The match is approximate rather than exact.

Code HistoryHistory

FY 2016AddedAdded to the ICD-10-CM code setEffective October 1, 2015, the first year of ICD-10-CM.
FY 2017–2026No changes
FY 2027CurrentCurrent code set, no changesEffective October 1, 2026 through September 30, 2027.

Questions About B71.8Overview

What is the ICD-10 code for other specified cestode infections?

The ICD-10-CM code for other specified cestode infections is B71.8 (sometimes written as B718). It is billable on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

Is B71.8 (Other cestode infections) a billable code?

Yes. This is a billable ICD-10-CM code, specific enough to report other specified cestode infections on HIPAA-covered claims from October 1, 2026 through September 30, 2027.

What MS-DRG does B71.8 group to?

When other specified cestode infections is the principal diagnosis on an inpatient stay, it groups to MS-DRG 372, 371, 373, with relative weights from 0.6945 to 1.7087 depending on complications. Higher weights mean higher Medicare reimbursement.

Is B71.8 a CC or MCC?

CMS lists B71.8 as a CC (complication or comorbidity) for FY 2027. 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 14 closely related codes in its exclusion list.

What is the ICD-9 equivalent of B71.8?

Under the General Equivalence Mappings, other specified cestode infections converts to ICD-9-CM 123.8 (cestode infection NEC). The mapping is approximate, so confirm the match fits the documentation.