ICD-10-CM · Chapter 4 · E00–E89
E70.5
Disorders of tryptophan metabolism
Endocrine, nutritional and metabolic diseases
Quick facts
- Code
- E70.5
- Type
- Billable code
- ICD-10-CM chapter
- Chapter 4 — Endocrine, nutritional and metabolic diseases
- Category
- E70 — Disorders of aromatic amino-acid metabolism
- Specificity
- 4 characters
How coders use this code
ICD-10-CM E70.5 is a billable, fully specified code, so it can be reported directly on a claim to document a diagnosis of disorders of tryptophan metabolism. Coders assign it when the chart documentation supports this level of detail, always matching to the most specific code available and verifying against the chapter-specific guidelines published annually by NCHS/CMS.
Related codes in E70
- E70Disorders of aromatic amino-acid metabolism
- E70.0Classical phenylketonuria
- E70.1Other hyperphenylalaninemias
- E70.2Disorders of tyrosine metabolism
- E70.20Disorder of tyrosine metabolism, unspecified
- E70.21Tyrosinemia
- E70.29Other disorders of tyrosine metabolism
- E70.3Albinism
- E70.30Albinism, unspecified
- E70.31Ocular albinism
- E70.310X-linked ocular albinism
- E70.311Autosomal recessive ocular albinism
- E70.318Other ocular albinism
- E70.319Ocular albinism, unspecified
- E70.32Oculocutaneous albinism
Want to learn coding?
Master ICD-10-CM in 90 days.
Medita's 90-day curriculum is calibrated to the CPC (AAPC), CCA, and CCS (AHIMA) exam blueprints. Day 1 is free.