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    v1.0.28
    OpenPayerBilling CodesOther bacterial diseasesICD-10-CM a35-other-tetanus
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    ICD-10-CM Code For Other Tetanus: Group Overview

    The International Classification of Diseases, Tenth Revision, Clinical Modification (ICD-10-CM) code group A35 includes tetanus infections that are not specified by localized wound or neonatal onset and covers presentations with generalized muscle rigidity, spasms, and other systemic manifestations. These ICD-10-CM diagnosis codes are used to document clinical encounters involving tetanus infection, capturing severity, neurologic involvement, and complications relevant to treatment intensity. Accurate coding within the ICD-10-CM A35 group supports proper claim adjudication, complete clinical documentation, and appropriate reimbursement.

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    ICD-10-CM A35: Other Tetanus Overview

    The ICD-10-CM A35 group represents tetanus infections not otherwise specified by location or specific presentation, caused by Clostridium tetani and affecting the nervous system with muscle rigidity and spasms. These diagnoses target neurologic complications from tetanus and related systemic effects. Accurate coding matters for clinical documentation and reimbursement because it captures disease severity and the need for intensive services.

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    When to Use

    Use a code from this group when a patient has a documented tetanus infection without specification of wound-associated, localized, or neonatal tetanus, or when the clinical record indicates generalized tetanus features. Select the code when documentation supports the presence of tetanus-related neuromuscular symptoms or systemic complications requiring treatment.

    ICD-10-CM Codes

    1 rows

    ICD-10-CM CodeDescription
    A35Other tetanus

    DRG Codes

    5 rows

    DRG CodeDescription
    791Prematurity with Major Problems
    793Full Term Neonate with Major Problems
    867Other Infectious and Parasitic Diseases Diagnoses with MCC
    868Other Infectious and Parasitic Diseases Diagnoses with CC
    869Other Infectious and Parasitic Diseases Diagnoses without CC/MCC

    Typical Clinical Scenarios

    • A previously healthy adult presents to the emergency department with acute onset of trismus (lockjaw), painful muscle spasms of the neck and back, difficulty swallowing, and recent history of a contaminated puncture wound from gardening. Tetanus is suspected based on the characteristic tonic-clonic spasms and wound exposure, prompting inpatient evaluation and management; a diagnosis from this group is assigned when clinical features are consistent with tetanus caused by Clostridium tetani. Typical codes: A35
    • An elderly patient in a nursing facility develops progressive generalized muscle stiffness over several days after a chronic ulcer on the lower extremity showed signs of infection; staff report decreased oral intake and intermittent spasms that impair care. Because the presentation is subacute in onset in a high-risk population with a potential contaminated wound and classic tetanic symptoms, clinicians document the condition using a code from this group for other tetanus. Typical codes: A35
    • A postpartum patient who sustained perineal lacerations during delivery returns with fever, irritability, difficulty nursing the newborn, and increasing muscle rigidity suggestive of neonatal or adult-onset tetanus as a complication of the obstetric wound. When tetanus is diagnosed as a complication following childbirth-related tissue disruption, the appropriate classification from this group is used. Typical codes: A35

    Related Codes

    A30-LEPROSY-HANSEN-S-DISEASE

    ICD-10-CM Code For Leprosy Hansen's Disease: Group Overview

    A31-INFECTION-DUE-TO-OTHER-MYCOBACTERIA

    ICD-10-CM Code For Infection Due To Other Mycobacteria: Group Overview

    A32-LISTERIOSIS

    ICD-10-CM Code For Listeriosis: Group Overview

    A33-TETANUS-NEONATORUM

    ICD-10-CM Code For Tetanus Neonatorum: Group Overview

    A34-OBSTETRICAL-TETANUS

    ICD-10-CM Code For Obstetrical Tetanus: Group Overview

    A36-DIPHTHERIA

    ICD-10-CM Code For Diphtheria: Group Overview

    A37-WHOOPING-COUGH

    ICD-10-CM Code For Whooping Cough: Group Overview

    A38-SCARLET-FEVER

    ICD-10-CM Code For Scarlet Fever: Group Overview

    A39-MENINGOCOCCAL-INFECTION

    ICD-10-CM Code For Meningococcal Infection: Group Overview

    A41-OTHER-SEPSIS

    ICD-10-CM Code For Other Sepsis: Group Overview

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    Frequently Asked Questions

    References

    1. 1.CPT® Codes and Descriptions. AAPC. Retrieved Aug 11, 2026.Maintains the CPT code set's official descriptions and guidelines, licensed from the American Medical Association, used as the definitional source for CPT codes on this page.
    2. 2.HCPCS Quarterly Update. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's quarterly release of HCPCS Level II codes and short/long descriptors, the source for HCPCS code definitions and update history.
    3. 3.ICD-10-CM Full Code List. Centers for Medicare & Medicaid Services (CMS). Retrieved Aug 11, 2026.CMS's complete ICD-10-CM diagnosis code list, used to cross-reference diagnosis codes associated with this procedure or service.
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