Convert to ICD-10-CM: 
098.59 converts approximately to:
- 2015/16 ICD-10-CM A54.40 Gonococcal infection of musculoskeletal system, unspecified
 ICD-9-CM Volume 2 Index entries containing back-references to 
098.59:
- Rheumatism, rheumatic (acute NEC) 729.0  blennorrhagic 098.59 blennorrhagic 098.59
  gonococcal 098.59 gonococcal 098.59