Diagnosis Code


Code Information

Diagnosis Code: A18.03

Short Description: Tuberculosis of other bones

Long Description: Tuberculosis of other bones

The code A18.03 is VALID for claim submission

Code Classification:

  • Certain infectious and parasitic diseases (A00–B99)
    • Tuberculosis (A15-A19)
      • Tuberculosis of other organs (A18)
        • A18.03 Tuberculosis of other bones

Code Version: 2020 ICD-10-CM


  • Bacterial osteomyelitis
  • Infection of bone of radius and/or ulna
  • Infection of humerus
  • Tuberculosis limb bones - Tuberculous dactylitis
  • Tuberculosis of bone
  • Tuberculosis of bone of upper limb
  • Tuberculosis of bones and/or joints
  • Tuberculosis of bones of lower extremity
  • Tuberculosis of limb bones
  • Tuberculosis of mastoid process
  • Tuberculosis of multiple limb bones
  • Tuberculosis of the bones of multiple sites
  • Tuberculosis of the bones of the ankle and/or foot
  • Tuberculosis of the bones of the hand
  • Tuberculosis of the bones of the shoulder region
  • Tuberculosis of the forearm bone
  • Tuberculosis of the lower leg bone
  • Tuberculosis of the pelvic and/or thigh bones
  • Tuberculosis of the upper arm bone
  • Tuberculous dactylitis
  • Tuberculous necrosis of bone
  • Tuberculous osteomyelitis

Diagnostic Related Group(s)

The code A18.03 is grouped in the following Diagnostic Related Group(s) (MS-DRG v37.0)
  • Osteomyelitis With Mcc (539)
  • Osteomyelitis With Cc (540)
  • Osteomyelitis Without Cc/mcc (541)

References to Index of Diseases and Injuries

The code A18.03 has the following ICD-10-CM references to the Index of Diseases and Injuries
  • Inclusion Terms:
    • Tuberculous mastoiditis
    • Tuberculous osteomyelitis

Crosswalk Information

ICD-10 Code ICD-9 Code ICD-9 Description
A18.03 Right Arrow 015.60 TB of mastoid-unspec
015.70 TB of bone NEC-unspec
A18.03 Right Arrow 015.70 TB of bone NEC-unspec
730.88 Bone infect NEC-oth site
This ICD-10 to ICD-9 data is based on the 2018 General Equivalency Mapping (GEM) files published by the Centers for Medicare & Medicaid Services (CMS) for informational purposes only. The data is not an ICD-10 conversion tool and doesn’t guarantee clinical accuracy.

Similar Codes

ICD-10 Code ICD-10 Description
A18 Tuberculosis of other organs
A18.0 Tuberculosis of bones and joints
A18.01 Tuberculosis of spine
A18.02 Tuberculous arthritis of other joints
A18.09 Other musculoskeletal tuberculosis
A18.1 Tuberculosis of genitourinary system
A18.10 Tuberculosis of genitourinary system, unspecified
A18.11 Tuberculosis of kidney and ureter
A18.12 Tuberculosis of bladder
A18.13 Tuberculosis of other urinary organs
A18.14 Tuberculosis of prostate
A18.15 Tuberculosis of other male genital organs
A18.16 Tuberculosis of cervix
A18.17 Tuberculous female pelvic inflammatory disease
A18.18 Tuberculosis of other female genital organs
A18.2 Tuberculous peripheral lymphadenopathy
A18.3 Tuberculosis of intestines, peritoneum and mesenteric glands
A18.31 Tuberculous peritonitis
A18.32 Tuberculous enteritis
A18.39 Retroperitoneal tuberculosis
A18.4 Tuberculosis of skin and subcutaneous tissue
A18.5 Tuberculosis of eye
A18.50 Tuberculosis of eye, unspecified
A18.51 Tuberculous episcleritis
A18.52 Tuberculous keratitis
A18.53 Tuberculous chorioretinitis
A18.54 Tuberculous iridocyclitis
A18.59 Other tuberculosis of eye
A18.6 Tuberculosis of (inner) (middle) ear
A18.7 Tuberculosis of adrenal glands
A18.8 Tuberculosis of other specified organs
A18.81 Tuberculosis of thyroid gland
A18.82 Tuberculosis of other endocrine glands
A18.83 Tuberculosis of digestive tract organs, not elsewhere classified
A18.84 Tuberculosis of heart
A18.85 Tuberculosis of spleen
A18.89 Tuberculosis of other sites

This page was last updated on: 10/1/2019