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ICD10

ICD-10 Code A56.1: Chlamydial infection of pelviperitoneum and other genitourinary organs

A56.1 is an ICD-10 diagnosis entry used to group records related to Chlamydial infection of pelviperitoneum and other genitourinary organs. You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen. ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Certain infectious and parasitic diseases (A00-B99).

What is this code?

ICD-10 entries help standardize how diagnoses are organized for coding, reporting, analytics, and documentation. This code sits within the broader ICD-10 area for Certain infectious and parasitic diseases (A00-B99).

đź“‹Clinical overview

This ICD-10 code is commonly used when documentation describes sexually transmitted chlamydial infection. The most accurate code depends on whether the documented site is lower genitourinary tract, pelvic or other genitourinary organs, anus or rectum, pharynx, or another specified site.

When is it used?

  • May be used when a clinician documents chlamydial infection of pelviperitoneum and other genitourinary organs in a patient's medical record.
  • May appear in hospital records, claims, referrals, and clinical documentation.
  • This code may act more like a grouping or parent code, so a more specific child code may be used in final documentation when available.

What it does not mean

  • A code alone does not explain severity, treatment plan, or outcome.
  • A medical code should not be treated as a substitute for a doctor's diagnosis or advice.
  • This entry may represent a broader category rather than the most specific billable code.

đź©şClinical context

When commonly used
  • Primary-care, urgent-care, sexual-health, gynecology, urology, colorectal, and follow-up workflows where chlamydial infection affects diagnosis, treatment planning, partner management, or site-specific counseling.
  • Coding and utilization-review workflows where the chart identifies the exact anatomic site of sexually transmitted chlamydial disease and that site changes final code specificity.
Common management context
  • Evaluation often includes symptom review, site-specific exam context, STI test-result review, treatment planning, partner-treatment counseling, and follow-up testing planning.
  • Documentation usually becomes more specific when the chart identifies lower-genitourinary versus pelvic-inflammatory versus anorectal versus pharyngeal involvement, or clarifies another specified site.
  • Specialist context already linked on this page includes Infectious Disease Specialist, General Physician, Urologist.

🔍Key distinctions

Important notes
  • This ICD-10 family captures sexually transmitted chlamydial disease across multiple anatomic sites rather than a single genitourinary presentation alone.
  • Site detail, such as lower genitourinary, pelvic inflammatory, anorectal, pharyngeal, or another specified site, drives final code specificity inside this family.
  • Pelviperitoneal or other-genitourinary-organ chlamydial infection is coded separately from lower-genitourinary, anorectal, pharyngeal, or other-site chlamydial disease.
  • Documentation that describes sexually transmitted chlamydial infection is coded differently from gonococcal infection, nongonococcal urethritis without documented chlamydia, or other sexually transmitted infections when the organism or site is documented more clearly.
Related codes to consider
A56.11Chlamydial female pelvic inflammatory disease
Related sexually-transmitted-chlamydial ICD-10 code; documentation often becomes more specific when the chart identifies lower versus upper genitourinary tract, anorectal, pharyngeal, or another specified chlamydial site.
A56.19Other chlamydial genitourinary infection
Related sexually-transmitted-chlamydial ICD-10 code; documentation often becomes more specific when the chart identifies lower versus upper genitourinary tract, anorectal, pharyngeal, or another specified chlamydial site.

Code hierarchy

chapter
1Certain infectious and parasitic diseases (A00-B99)
block
A50-A64Infections with a predominantly sexual mode of transmission
category
A56Other sexually transmitted chlamydial diseases
currentA56

Where you may see this code

You may see this entry in coding references, medical records, or claims workflows when a broader diagnosis category is being reviewed before a more specific code is chosen.

Related specialists

Infectious Disease SpecialistGeneral PhysicianUrologist

Coding guidelines

Compatibility

Legacy code aligns to an official FY 2026 category. Frontend should resolve to the official category page and surface the billable child codes.
Legacy codes
A56.1
Replacement codes
A56.11 — Chlamydial female pelvic inflammatory diseaseA56.19 — Other chlamydial genitourinary infection

Common synonyms

Chlamydial infection of pelviperitoneum and other genitourinary organs

Frequently asked questions

Code details

CodeA56.1
SystemICD10
Display nameChlamydial infection of pelviperitoneum and other genitourinary organs
ChapterCertain infectious and parasitic diseases (A00-B99)
BlockInfections with a predominantly sexual mode of transmission

Flags

BillableNo
Valid clinical useNo

Source

SourceICD-10
Version2026-annual
Releaseannual
Year2026

About this content

This page is prepared by HealthAssure's clinical team using official coding standards from ICD-10. AI tools assist with drafting explanations, which are then reviewed and verified by healthcare professionals for accuracy. This content is for informational purposes and does not replace professional medical advice. Meet our team.