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A56
Non-billable

Other sexually transmitted chlamydial diseases

Chapter 1: Certain infectious and parasitic diseases

Includes

2 items
  • sexually transmitted diseases due to Chlamydia
  • trachomatis

Excludes1

2 items
  • neonatal chlamydial conjunctivitis (P39.1)
  • neonatal chlamydial pneumonia (P23.1)

Excludes2

2 items
  • chlamydial lymphogranuloma (A55)
  • conditions classified to A74.-

Coding Guidance

A56 should not be used for reimbursement purposes as there are more specific codes below it that contain a greater level of detail. See Related Codes to drill down to more specific billable codes for appropriate reimbursement.

Additional Information from Parent Codes

The following information may apply to this code from its parent codes in the ICD-10 hierarchy. This information is important for proper coding and classification.

Parent Codes Referenced:

Includes

1 item

From A00-B99:

  • diseases generally recognized as communicable or transmissible

Excludes1

1 item

From A00-B99:

  • certain localized infections - see body system-related chapters

Excludes2

4 items

From A00-B99:

  • carrier or suspected carrier of infectious disease (Z22.-)
  • 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

1 item

From A00-B99:

  • code to identify resistance to antimicrobial drugs (Z16.-)
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