Tailbone Disorders
Also known as: Sacrococcygeal pilonidal cyst · Coccyx disorders · Coccyx
General information only. Anpheros does not diagnose and does not recommend treatment. Talk to a doctor or pharmacist about your situation. In an emergency, call 112 (or your local emergency number).
In short
The tailbone is the small bone located at the bottom of the backbone or spine. Tailbone disorders encompass injuries, pain, infections, cysts, and tumors. Symptoms of these various disorders can include pain in the tailbone area, pain when sitting, a visible or feelable mass or growth, and pain or numbness in the arms or legs caused by pressure on the nerves in the tailbone area.
Source: MedlinePlus, National Library of Medicine.
AI-generated summary of the sources cited on this page, checked automatically against them. Not reviewed by a clinician; not medical advice.
Codes
Description
The tailbone is the small bone at the bottom of your backbone, or spine. Tailbone disorders include tailbone injuries, pain, infections, cysts and tumors. You rarely break your tailbone. Instead, most injuries cause bruises or pulled ligaments. A backward fall onto a hard surface, such as slipping on ice, is the most common cause of such injuries. Symptoms of various tailbone disorders include pain in the tailbone area, pain upon sitting, pain or numbness in the arms or legs due to pressure on nerves in the tailbone area, and a mass or growth you can see or feel.
Next to it in ICD-10
- L01Impetigo
- L03Cellulitis
- L04Acute lymphadenitis
- L08Other local skin infections
- L10Pemphigus, unspecified
- L12Pemphigoid, unspecified
Neighbouring codes in the classification, not a medical link.
External resources
Questions
What is the ICD-10 code for Tailbone Disorders?
L05 (WHO, International Classification of Diseases, 10th Revision).
What is the ICD-11 code for Tailbone Disorders?
EG63.1: Sacrococcygeal pilonidal cyst (WHO, ICD-11 for Mortality and Morbidity Statistics).
Sources and attribution
- ICD-11 for Mortality and Morbidity Statistics, © World Health Organization, licensed under CC BY-ND 3.0 IGO.
- Source: MedlinePlus, National Library of Medicine.
- Names other than the official source titles: Anpheros translations and plain-language names, made with AI assistance and checked automatically; the source names are in English.
- ICD-10 codes and titles © World Health Organization. Source: WHO, International Classification of Diseases, 10th Revision (2019).
Anpheros Search catalog 2026.10.5, published 17 October 2026. About the data →
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Links between terms. "May be associated with" means the link appears in a cited source. It does not mean you have that condition.
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